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Finding the Fourth Proportional to 356,881.31, 535,152.46 and 207,167.52

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Solution

The fourth proportional to 356,881.31, 535,152.46 and 207,167.52 is: 310,652.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,881.31 : 535,152.46 = 207,167.52 : x
  2. Step 2: Convert to fraction form
    356,881.31/535,152.46 = 207,167.52/x
  3. Step 3: Cross multiply
    356,881.31x = 535,152.46 × 207,167.52
  4. Step 4: Simplify right side
    356,881.31x = 110,866,207,960.10
  5. Step 5: Solve for x
    x = 110,866,207,960.10/356,881.31
  6. Step 6: Final answer
    x = 310,652.88

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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.