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Finding the Fourth Proportional to 516,595.30, 775,002.30 and 156,736.60

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Solution

The fourth proportional to 516,595.30, 775,002.30 and 156,736.60 is: 235,138.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,595.30 : 775,002.30 = 156,736.60 : x
  2. Step 2: Convert to fraction form
    516,595.30/775,002.30 = 156,736.60/x
  3. Step 3: Cross multiply
    516,595.30x = 775,002.30 × 156,736.60
  4. Step 4: Simplify right side
    516,595.30x = 121,471,225,494.18
  5. Step 5: Solve for x
    x = 121,471,225,494.18/516,595.30
  6. Step 6: Final answer
    x = 235,138.08

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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.