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Finding the Fourth Proportional to 124,006.40, 186,005.48 and 53,885.71

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Solution

The fourth proportional to 124,006.40, 186,005.48 and 53,885.71 is: 80,826.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,006.40 : 186,005.48 = 53,885.71 : x
  2. Step 2: Convert to fraction form
    124,006.40/186,005.48 = 53,885.71/x
  3. Step 3: Cross multiply
    124,006.40x = 186,005.48 × 53,885.71
  4. Step 4: Simplify right side
    124,006.40x = 10,023,037,353.69
  5. Step 5: Solve for x
    x = 10,023,037,353.69/124,006.40
  6. Step 6: Final answer
    x = 80,826.77

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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.