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Finding the Fourth Proportional to 111,755.66, 154,223.14 and 60,768.42

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Solution

The fourth proportional to 111,755.66, 154,223.14 and 60,768.42 is: 83,860.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,755.66 : 154,223.14 = 60,768.42 : x
  2. Step 2: Convert to fraction form
    111,755.66/154,223.14 = 60,768.42/x
  3. Step 3: Cross multiply
    111,755.66x = 154,223.14 × 60,768.42
  4. Step 4: Simplify right side
    111,755.66x = 9,371,896,545.24
  5. Step 5: Solve for x
    x = 9,371,896,545.24/111,755.66
  6. Step 6: Final answer
    x = 83,860.60

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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.