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Finding the Fourth Proportional to 169,491.60, 233,919.20 and 97,871.52

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Solution

The fourth proportional to 169,491.60, 233,919.20 and 97,871.52 is: 135,074.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,491.60 : 233,919.20 = 97,871.52 : x
  2. Step 2: Convert to fraction form
    169,491.60/233,919.20 = 97,871.52/x
  3. Step 3: Cross multiply
    169,491.60x = 233,919.20 × 97,871.52
  4. Step 4: Simplify right side
    169,491.60x = 22,894,027,661.18
  5. Step 5: Solve for x
    x = 22,894,027,661.18/169,491.60
  6. Step 6: Final answer
    x = 135,074.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.