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Finding the Fourth Proportional to 168,931.52, 233,115.84 and 93,475.52

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Solution

The fourth proportional to 168,931.52, 233,115.84 and 93,475.52 is: 128,990.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,931.52 : 233,115.84 = 93,475.52 : x
  2. Step 2: Convert to fraction form
    168,931.52/233,115.84 = 93,475.52/x
  3. Step 3: Cross multiply
    168,931.52x = 233,115.84 × 93,475.52
  4. Step 4: Simplify right side
    168,931.52x = 21,790,624,364.24
  5. Step 5: Solve for x
    x = 21,790,624,364.24/168,931.52
  6. Step 6: Final answer
    x = 128,990.87

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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.