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Finding the Fourth Proportional to 134,809.70, 202,141.65 and 55,931.90

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Solution

The fourth proportional to 134,809.70, 202,141.65 and 55,931.90 is: 83,867.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,809.70 : 202,141.65 = 55,931.90 : x
  2. Step 2: Convert to fraction form
    134,809.70/202,141.65 = 55,931.90/x
  3. Step 3: Cross multiply
    134,809.70x = 202,141.65 × 55,931.90
  4. Step 4: Simplify right side
    134,809.70x = 11,306,166,553.64
  5. Step 5: Solve for x
    x = 11,306,166,553.64/134,809.70
  6. Step 6: Final answer
    x = 83,867.60

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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.