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Finding the Fourth Proportional to 124,502,023.20, 186,894,752.40 and 73,412,828.40

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Solution

The fourth proportional to 124,502,023.20, 186,894,752.40 and 73,412,828.40 is: 110,202,806.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,502,023.20 : 186,894,752.40 = 73,412,828.40 : x
  2. Step 2: Convert to fraction form
    124,502,023.20/186,894,752.40 = 73,412,828.40/x
  3. Step 3: Cross multiply
    124,502,023.20x = 186,894,752.40 × 73,412,828.40
  4. Step 4: Simplify right side
    124,502,023.20x = 13,720,472,386,801,690
  5. Step 5: Solve for x
    x = 13,720,472,386,801,690/124,502,023.20
  6. Step 6: Final answer
    x = 110,202,806.62

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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.