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Finding the Fourth Proportional to 104,445.30, 156,610.35 and 42,045.30

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Solution

The fourth proportional to 104,445.30, 156,610.35 and 42,045.30 is: 63,044.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,445.30 : 156,610.35 = 42,045.30 : x
  2. Step 2: Convert to fraction form
    104,445.30/156,610.35 = 42,045.30/x
  3. Step 3: Cross multiply
    104,445.30x = 156,610.35 × 42,045.30
  4. Step 4: Simplify right side
    104,445.30x = 6,584,729,148.86
  5. Step 5: Solve for x
    x = 6,584,729,148.86/104,445.30
  6. Step 6: Final answer
    x = 63,044.76

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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.