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Finding the Fourth Proportional to 103,454.64, 154,875.78 and 63,884.52

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Solution

The fourth proportional to 103,454.64, 154,875.78 and 63,884.52 is: 95,637.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,454.64 : 154,875.78 = 63,884.52 : x
  2. Step 2: Convert to fraction form
    103,454.64/154,875.78 = 63,884.52/x
  3. Step 3: Cross multiply
    103,454.64x = 154,875.78 × 63,884.52
  4. Step 4: Simplify right side
    103,454.64x = 9,894,164,864.93
  5. Step 5: Solve for x
    x = 9,894,164,864.93/103,454.64
  6. Step 6: Final answer
    x = 95,637.71

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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.