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Finding the Fourth Proportional to 172,353.60, 258,530.40 and 116,366.40

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Solution

The fourth proportional to 172,353.60, 258,530.40 and 116,366.40 is: 174,549.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,353.60 : 258,530.40 = 116,366.40 : x
  2. Step 2: Convert to fraction form
    172,353.60/258,530.40 = 116,366.40/x
  3. Step 3: Cross multiply
    172,353.60x = 258,530.40 × 116,366.40
  4. Step 4: Simplify right side
    172,353.60x = 30,084,251,938.56
  5. Step 5: Solve for x
    x = 30,084,251,938.56/172,353.60
  6. Step 6: Final answer
    x = 174,549.60

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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.