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Finding the Fourth Proportional to 109,671.65, 151,347.36 and 59,370.65

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Solution

The fourth proportional to 109,671.65, 151,347.36 and 59,370.65 is: 81,931.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,671.65 : 151,347.36 = 59,370.65 : x
  2. Step 2: Convert to fraction form
    109,671.65/151,347.36 = 59,370.65/x
  3. Step 3: Cross multiply
    109,671.65x = 151,347.36 × 59,370.65
  4. Step 4: Simplify right side
    109,671.65x = 8,985,591,138.98
  5. Step 5: Solve for x
    x = 8,985,591,138.98/109,671.65
  6. Step 6: Final answer
    x = 81,931.76

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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.