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Finding the Fourth Proportional to 119,315.13, 164,658.05 and 65,601.53

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Solution

The fourth proportional to 119,315.13, 164,658.05 and 65,601.53 is: 90,531.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,315.13 : 164,658.05 = 65,601.53 : x
  2. Step 2: Convert to fraction form
    119,315.13/164,658.05 = 65,601.53/x
  3. Step 3: Cross multiply
    119,315.13x = 164,658.05 × 65,601.53
  4. Step 4: Simplify right side
    119,315.13x = 10,801,820,006.82
  5. Step 5: Solve for x
    x = 10,801,820,006.82/119,315.13
  6. Step 6: Final answer
    x = 90,531.85

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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.