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Finding the Fourth Proportional to 132,657.52, 183,080.28 and 99,065.20

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Solution

The fourth proportional to 132,657.52, 183,080.28 and 99,065.20 is: 136,719.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,657.52 : 183,080.28 = 99,065.20 : x
  2. Step 2: Convert to fraction form
    132,657.52/183,080.28 = 99,065.20/x
  3. Step 3: Cross multiply
    132,657.52x = 183,080.28 × 99,065.20
  4. Step 4: Simplify right side
    132,657.52x = 18,136,884,554.26
  5. Step 5: Solve for x
    x = 18,136,884,554.26/132,657.52
  6. Step 6: Final answer
    x = 136,719.61

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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.