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Finding the Fourth Proportional to 111,373.75, 153,695.81 and 61,073.83

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Solution

The fourth proportional to 111,373.75, 153,695.81 and 61,073.83 is: 84,281.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,373.75 : 153,695.81 = 61,073.83 : x
  2. Step 2: Convert to fraction form
    111,373.75/153,695.81 = 61,073.83/x
  3. Step 3: Cross multiply
    111,373.75x = 153,695.81 × 61,073.83
  4. Step 4: Simplify right side
    111,373.75x = 9,386,791,771.65
  5. Step 5: Solve for x
    x = 9,386,791,771.65/111,373.75
  6. Step 6: Final answer
    x = 84,281.90

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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.