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Finding the Fourth Proportional to 188,507.69, 260,134.02 and 103,624.14

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Solution

The fourth proportional to 188,507.69, 260,134.02 and 103,624.14 is: 142,997.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,507.69 : 260,134.02 = 103,624.14 : x
  2. Step 2: Convert to fraction form
    188,507.69/260,134.02 = 103,624.14/x
  3. Step 3: Cross multiply
    188,507.69x = 260,134.02 × 103,624.14
  4. Step 4: Simplify right side
    188,507.69x = 26,956,164,107.24
  5. Step 5: Solve for x
    x = 26,956,164,107.24/188,507.69
  6. Step 6: Final answer
    x = 142,997.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.