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Finding the Fourth Proportional to 111,335.57, 153,643.08 and 61,034.57

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Solution

The fourth proportional to 111,335.57, 153,643.08 and 61,034.57 is: 84,227.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,335.57 : 153,643.08 = 61,034.57 : x
  2. Step 2: Convert to fraction form
    111,335.57/153,643.08 = 61,034.57/x
  3. Step 3: Cross multiply
    111,335.57x = 153,643.08 × 61,034.57
  4. Step 4: Simplify right side
    111,335.57x = 9,377,538,247.89
  5. Step 5: Solve for x
    x = 9,377,538,247.89/111,335.57
  6. Step 6: Final answer
    x = 84,227.70

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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.