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Finding the Fourth Proportional to 125,672.79, 173,424.06 and 69,083.76

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Solution

The fourth proportional to 125,672.79, 173,424.06 and 69,083.76 is: 95,333.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,672.79 : 173,424.06 = 69,083.76 : x
  2. Step 2: Convert to fraction form
    125,672.79/173,424.06 = 69,083.76/x
  3. Step 3: Cross multiply
    125,672.79x = 173,424.06 × 69,083.76
  4. Step 4: Simplify right side
    125,672.79x = 11,980,786,139.27
  5. Step 5: Solve for x
    x = 11,980,786,139.27/125,672.79
  6. Step 6: Final answer
    x = 95,333.18

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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.