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Finding the Fourth Proportional to 370,572.01, 555,747.76 and 157,336.78

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Solution

The fourth proportional to 370,572.01, 555,747.76 and 157,336.78 is: 235,958.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,572.01 : 555,747.76 = 157,336.78 : x
  2. Step 2: Convert to fraction form
    370,572.01/555,747.76 = 157,336.78/x
  3. Step 3: Cross multiply
    370,572.01x = 555,747.76 × 157,336.78
  4. Step 4: Simplify right side
    370,572.01x = 87,439,563,050.61
  5. Step 5: Solve for x
    x = 87,439,563,050.61/370,572.01
  6. Step 6: Final answer
    x = 235,958.36

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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.