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Finding the Fourth Proportional to 317,290.80, 475,957.80 and 101,132.40

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Solution

The fourth proportional to 317,290.80, 475,957.80 and 101,132.40 is: 151,705.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,290.80 : 475,957.80 = 101,132.40 : x
  2. Step 2: Convert to fraction form
    317,290.80/475,957.80 = 101,132.40/x
  3. Step 3: Cross multiply
    317,290.80x = 475,957.80 × 101,132.40
  4. Step 4: Simplify right side
    317,290.80x = 48,134,754,612.72
  5. Step 5: Solve for x
    x = 48,134,754,612.72/317,290.80
  6. Step 6: Final answer
    x = 151,705.48

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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.