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Finding the Fourth Proportional to 126,592.68, 174,715.30 and 72,876.52

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Solution

The fourth proportional to 126,592.68, 174,715.30 and 72,876.52 is: 100,579.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,592.68 : 174,715.30 = 72,876.52 : x
  2. Step 2: Convert to fraction form
    126,592.68/174,715.30 = 72,876.52/x
  3. Step 3: Cross multiply
    126,592.68x = 174,715.30 × 72,876.52
  4. Step 4: Simplify right side
    126,592.68x = 12,732,643,054.76
  5. Step 5: Solve for x
    x = 12,732,643,054.76/126,592.68
  6. Step 6: Final answer
    x = 100,579.62

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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.