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Finding the Fourth Proportional to 88,308, 132,429.60 and 29,126.16

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Solution

The fourth proportional to 88,308, 132,429.60 and 29,126.16 is: 43,678.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,308 : 132,429.60 = 29,126.16 : x
  2. Step 2: Convert to fraction form
    88,308/132,429.60 = 29,126.16/x
  3. Step 3: Cross multiply
    88,308x = 132,429.60 × 29,126.16
  4. Step 4: Simplify right side
    88,308x = 3,857,165,718.34
  5. Step 5: Solve for x
    x = 3,857,165,718.34/88,308
  6. Step 6: Final answer
    x = 43,678.55

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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.