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Finding the Fourth Proportional to 531,697.80, 797,273.10 and 157,672.20

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Solution

The fourth proportional to 531,697.80, 797,273.10 and 157,672.20 is: 236,427.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,697.80 : 797,273.10 = 157,672.20 : x
  2. Step 2: Convert to fraction form
    531,697.80/797,273.10 = 157,672.20/x
  3. Step 3: Cross multiply
    531,697.80x = 797,273.10 × 157,672.20
  4. Step 4: Simplify right side
    531,697.80x = 125,707,803,677.82
  5. Step 5: Solve for x
    x = 125,707,803,677.82/531,697.80
  6. Step 6: Final answer
    x = 236,427.17

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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.