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Finding the Fourth Proportional to 157,223.62, 217,041.72 and 92,672.50

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Solution

The fourth proportional to 157,223.62, 217,041.72 and 92,672.50 is: 127,931.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,223.62 : 217,041.72 = 92,672.50 : x
  2. Step 2: Convert to fraction form
    157,223.62/217,041.72 = 92,672.50/x
  3. Step 3: Cross multiply
    157,223.62x = 217,041.72 × 92,672.50
  4. Step 4: Simplify right side
    157,223.62x = 20,113,798,796.70
  5. Step 5: Solve for x
    x = 20,113,798,796.70/157,223.62
  6. Step 6: Final answer
    x = 127,931.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.