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Finding the Fourth Proportional to 417,746.70, 626,540.13 and 118,154.97

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Solution

The fourth proportional to 417,746.70, 626,540.13 and 118,154.97 is: 177,209.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,746.70 : 626,540.13 = 118,154.97 : x
  2. Step 2: Convert to fraction form
    417,746.70/626,540.13 = 118,154.97/x
  3. Step 3: Cross multiply
    417,746.70x = 626,540.13 × 118,154.97
  4. Step 4: Simplify right side
    417,746.70x = 74,028,830,263.95
  5. Step 5: Solve for x
    x = 74,028,830,263.95/417,746.70
  6. Step 6: Final answer
    x = 177,209.85

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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.