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Finding the Fourth Proportional to 125,299.56, 172,913.22 and 68,710.92

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Solution

The fourth proportional to 125,299.56, 172,913.22 and 68,710.92 is: 94,820.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,299.56 : 172,913.22 = 68,710.92 : x
  2. Step 2: Convert to fraction form
    125,299.56/172,913.22 = 68,710.92/x
  3. Step 3: Cross multiply
    125,299.56x = 172,913.22 × 68,710.92
  4. Step 4: Simplify right side
    125,299.56x = 11,881,026,426.36
  5. Step 5: Solve for x
    x = 11,881,026,426.36/125,299.56
  6. Step 6: Final answer
    x = 94,820.97

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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.