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Finding the Fourth Proportional to 96,455.61, 132,919.18 and 73,820.16

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Solution

The fourth proportional to 96,455.61, 132,919.18 and 73,820.16 is: 101,726.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,455.61 : 132,919.18 = 73,820.16 : x
  2. Step 2: Convert to fraction form
    96,455.61/132,919.18 = 73,820.16/x
  3. Step 3: Cross multiply
    96,455.61x = 132,919.18 × 73,820.16
  4. Step 4: Simplify right side
    96,455.61x = 9,812,114,950.12
  5. Step 5: Solve for x
    x = 9,812,114,950.12/96,455.61
  6. Step 6: Final answer
    x = 101,726.74

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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.