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Finding the Fourth Proportional to 314,947.52, 472,171.80 and 157,094.72

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Solution

The fourth proportional to 314,947.52, 472,171.80 and 157,094.72 is: 235,517.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,947.52 : 472,171.80 = 157,094.72 : x
  2. Step 2: Convert to fraction form
    314,947.52/472,171.80 = 157,094.72/x
  3. Step 3: Cross multiply
    314,947.52x = 472,171.80 × 157,094.72
  4. Step 4: Simplify right side
    314,947.52x = 74,175,696,712.90
  5. Step 5: Solve for x
    x = 74,175,696,712.90/314,947.52
  6. Step 6: Final answer
    x = 235,517.64

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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.