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Finding the Fourth Proportional to 417,730.70, 626,599.38 and 118,221.02

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Solution

The fourth proportional to 417,730.70, 626,599.38 and 118,221.02 is: 177,332.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,730.70 : 626,599.38 = 118,221.02 : x
  2. Step 2: Convert to fraction form
    417,730.70/626,599.38 = 118,221.02/x
  3. Step 3: Cross multiply
    417,730.70x = 626,599.38 × 118,221.02
  4. Step 4: Simplify right side
    417,730.70x = 74,077,217,834.97
  5. Step 5: Solve for x
    x = 74,077,217,834.97/417,730.70
  6. Step 6: Final answer
    x = 177,332.47

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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.