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Finding the Fourth Proportional to 417,874.95, 627,061.43 and 151,656.21

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Solution

The fourth proportional to 417,874.95, 627,061.43 and 151,656.21 is: 227,574.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,874.95 : 627,061.43 = 151,656.21 : x
  2. Step 2: Convert to fraction form
    417,874.95/627,061.43 = 151,656.21/x
  3. Step 3: Cross multiply
    417,874.95x = 627,061.43 × 151,656.21
  4. Step 4: Simplify right side
    417,874.95x = 95,097,759,152.70
  5. Step 5: Solve for x
    x = 95,097,759,152.70/417,874.95
  6. Step 6: Final answer
    x = 227,574.68

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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.