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Finding the Fourth Proportional to 111,332.34, 153,638.46 and 61,034.58

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Solution

The fourth proportional to 111,332.34, 153,638.46 and 61,034.58 is: 84,227.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,332.34 : 153,638.46 = 61,034.58 : x
  2. Step 2: Convert to fraction form
    111,332.34/153,638.46 = 61,034.58/x
  3. Step 3: Cross multiply
    111,332.34x = 153,638.46 × 61,034.58
  4. Step 4: Simplify right side
    111,332.34x = 9,377,258,877.95
  5. Step 5: Solve for x
    x = 9,377,258,877.95/111,332.34
  6. Step 6: Final answer
    x = 84,227.63

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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.