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Finding the Fourth Proportional to 118,429.30, 177,714.04 and 43,602.04

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Solution

The fourth proportional to 118,429.30, 177,714.04 and 43,602.04 is: 65,428.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,429.30 : 177,714.04 = 43,602.04 : x
  2. Step 2: Convert to fraction form
    118,429.30/177,714.04 = 43,602.04/x
  3. Step 3: Cross multiply
    118,429.30x = 177,714.04 × 43,602.04
  4. Step 4: Simplify right side
    118,429.30x = 7,748,694,680.64
  5. Step 5: Solve for x
    x = 7,748,694,680.64/118,429.30
  6. Step 6: Final answer
    x = 65,428.86

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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.