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Finding the Fourth Proportional to 356,969.31, 535,594.15 and 157,149.50

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Solution

The fourth proportional to 356,969.31, 535,594.15 and 157,149.50 is: 235,785.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,969.31 : 535,594.15 = 157,149.50 : x
  2. Step 2: Convert to fraction form
    356,969.31/535,594.15 = 157,149.50/x
  3. Step 3: Cross multiply
    356,969.31x = 535,594.15 × 157,149.50
  4. Step 4: Simplify right side
    356,969.31x = 84,168,350,750.69
  5. Step 5: Solve for x
    x = 84,168,350,750.69/356,969.31
  6. Step 6: Final answer
    x = 235,785.96

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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.