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Finding the Fourth Proportional to 112,698,305.20, 169,047,457.80 and 112,698,305.20

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Solution

The fourth proportional to 112,698,305.20, 169,047,457.80 and 112,698,305.20 is: 169,047,457.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,698,305.20 : 169,047,457.80 = 112,698,305.20 : x
  2. Step 2: Convert to fraction form
    112,698,305.20/169,047,457.80 = 112,698,305.20/x
  3. Step 3: Cross multiply
    112,698,305.20x = 169,047,457.80 × 112,698,305.20
  4. Step 4: Simplify right side
    112,698,305.20x = 19,051,361,992,428,524
  5. Step 5: Solve for x
    x = 19,051,361,992,428,524/112,698,305.20
  6. Step 6: Final answer
    x = 169,047,457.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.