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Finding the Fourth Proportional to 476,612.07, 715,006.13 and 156,781.95

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Solution

The fourth proportional to 476,612.07, 715,006.13 and 156,781.95 is: 235,201.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,612.07 : 715,006.13 = 156,781.95 : x
  2. Step 2: Convert to fraction form
    476,612.07/715,006.13 = 156,781.95/x
  3. Step 3: Cross multiply
    476,612.07x = 715,006.13 × 156,781.95
  4. Step 4: Simplify right side
    476,612.07x = 112,100,054,539.44
  5. Step 5: Solve for x
    x = 112,100,054,539.44/476,612.07
  6. Step 6: Final answer
    x = 235,201.88

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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.