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Finding the Fourth Proportional to 89,710.92, 123,800.48 and 49,423.76

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Solution

The fourth proportional to 89,710.92, 123,800.48 and 49,423.76 is: 68,204.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,710.92 : 123,800.48 = 49,423.76 : x
  2. Step 2: Convert to fraction form
    89,710.92/123,800.48 = 49,423.76/x
  3. Step 3: Cross multiply
    89,710.92x = 123,800.48 × 49,423.76
  4. Step 4: Simplify right side
    89,710.92x = 6,118,685,211.40
  5. Step 5: Solve for x
    x = 6,118,685,211.40/89,710.92
  6. Step 6: Final answer
    x = 68,204.46

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1.5x scale

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.