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Finding the Fourth Proportional to 168,207.40, 252,602.70 and 89,475.40

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Solution

The fourth proportional to 168,207.40, 252,602.70 and 89,475.40 is: 134,368.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,207.40 : 252,602.70 = 89,475.40 : x
  2. Step 2: Convert to fraction form
    168,207.40/252,602.70 = 89,475.40/x
  3. Step 3: Cross multiply
    168,207.40x = 252,602.70 × 89,475.40
  4. Step 4: Simplify right side
    168,207.40x = 22,601,727,623.58
  5. Step 5: Solve for x
    x = 22,601,727,623.58/168,207.40
  6. Step 6: Final answer
    x = 134,368.21

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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.