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Finding the Fourth Proportional to 144,680.60, 217,020.90 and 88,693.40

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Solution

The fourth proportional to 144,680.60, 217,020.90 and 88,693.40 is: 133,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,680.60 : 217,020.90 = 88,693.40 : x
  2. Step 2: Convert to fraction form
    144,680.60/217,020.90 = 88,693.40/x
  3. Step 3: Cross multiply
    144,680.60x = 217,020.90 × 88,693.40
  4. Step 4: Simplify right side
    144,680.60x = 19,248,321,492.06
  5. Step 5: Solve for x
    x = 19,248,321,492.06/144,680.60
  6. Step 6: Final answer
    x = 133,040.10

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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.