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Finding the Fourth Proportional to 126,592.92, 174,715.50 and 72,876.60

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Solution

The fourth proportional to 126,592.92, 174,715.50 and 72,876.60 is: 100,579.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,592.92 : 174,715.50 = 72,876.60 : x
  2. Step 2: Convert to fraction form
    126,592.92/174,715.50 = 72,876.60/x
  3. Step 3: Cross multiply
    126,592.92x = 174,715.50 × 72,876.60
  4. Step 4: Simplify right side
    126,592.92x = 12,732,671,607.30
  5. Step 5: Solve for x
    x = 12,732,671,607.30/126,592.92
  6. Step 6: Final answer
    x = 100,579.65

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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.