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Finding the Fourth Proportional to 88,643.92, 132,962.64 and 26,312.80

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Solution

The fourth proportional to 88,643.92, 132,962.64 and 26,312.80 is: 39,468.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,643.92 : 132,962.64 = 26,312.80 : x
  2. Step 2: Convert to fraction form
    88,643.92/132,962.64 = 26,312.80/x
  3. Step 3: Cross multiply
    88,643.92x = 132,962.64 × 26,312.80
  4. Step 4: Simplify right side
    88,643.92x = 3,498,619,353.79
  5. Step 5: Solve for x
    x = 3,498,619,353.79/88,643.92
  6. Step 6: Final answer
    x = 39,468.24

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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.