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Finding the Fourth Proportional to 113,259.60, 169,616.16 and 89,484.48

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Solution

The fourth proportional to 113,259.60, 169,616.16 and 89,484.48 is: 134,010.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,259.60 : 169,616.16 = 89,484.48 : x
  2. Step 2: Convert to fraction form
    113,259.60/169,616.16 = 89,484.48/x
  3. Step 3: Cross multiply
    113,259.60x = 169,616.16 × 89,484.48
  4. Step 4: Simplify right side
    113,259.60x = 15,178,013,877.20
  5. Step 5: Solve for x
    x = 15,178,013,877.20/113,259.60
  6. Step 6: Final answer
    x = 134,010.84

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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.