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Finding the Fourth Proportional to 123,871.48, 185,806.86 and 44,985.40

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Solution

The fourth proportional to 123,871.48, 185,806.86 and 44,985.40 is: 67,477.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,871.48 : 185,806.86 = 44,985.40 : x
  2. Step 2: Convert to fraction form
    123,871.48/185,806.86 = 44,985.40/x
  3. Step 3: Cross multiply
    123,871.48x = 185,806.86 × 44,985.40
  4. Step 4: Simplify right side
    123,871.48x = 8,358,595,919.84
  5. Step 5: Solve for x
    x = 8,358,595,919.84/123,871.48
  6. Step 6: Final answer
    x = 67,477.97

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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.