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Finding the Fourth Proportional to 83,315.66, 114,855.99 and 59,400.83

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Solution

The fourth proportional to 83,315.66, 114,855.99 and 59,400.83 is: 81,887.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,315.66 : 114,855.99 = 59,400.83 : x
  2. Step 2: Convert to fraction form
    83,315.66/114,855.99 = 59,400.83/x
  3. Step 3: Cross multiply
    83,315.66x = 114,855.99 × 59,400.83
  4. Step 4: Simplify right side
    83,315.66x = 6,822,541,136.47
  5. Step 5: Solve for x
    x = 6,822,541,136.47/83,315.66
  6. Step 6: Final answer
    x = 81,887.86

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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.