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Finding the Fourth Proportional to 113,595.58, 156,762.03 and 65,876.66

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Solution

The fourth proportional to 113,595.58, 156,762.03 and 65,876.66 is: 90,909.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,595.58 : 156,762.03 = 65,876.66 : x
  2. Step 2: Convert to fraction form
    113,595.58/156,762.03 = 65,876.66/x
  3. Step 3: Cross multiply
    113,595.58x = 156,762.03 × 65,876.66
  4. Step 4: Simplify right side
    113,595.58x = 10,326,958,951.22
  5. Step 5: Solve for x
    x = 10,326,958,951.22/113,595.58
  6. Step 6: Final answer
    x = 90,909.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.