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Finding the Fourth Proportional to 119,596,687.20, 167,888,858.40 and 119,596,687.20

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Solution

The fourth proportional to 119,596,687.20, 167,888,858.40 and 119,596,687.20 is: 167,888,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,596,687.20 : 167,888,858.40 = 119,596,687.20 : x
  2. Step 2: Convert to fraction form
    119,596,687.20/167,888,858.40 = 119,596,687.20/x
  3. Step 3: Cross multiply
    119,596,687.20x = 167,888,858.40 × 119,596,687.20
  4. Step 4: Simplify right side
    119,596,687.20x = 20,078,951,282,429,892
  5. Step 5: Solve for x
    x = 20,078,951,282,429,892/119,596,687.20
  6. Step 6: Final answer
    x = 167,888,858.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.