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Finding the Fourth Proportional to 110,897.22, 153,041.31 and 61,839.96

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Solution

The fourth proportional to 110,897.22, 153,041.31 and 61,839.96 is: 85,340.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,897.22 : 153,041.31 = 61,839.96 : x
  2. Step 2: Convert to fraction form
    110,897.22/153,041.31 = 61,839.96/x
  3. Step 3: Cross multiply
    110,897.22x = 153,041.31 × 61,839.96
  4. Step 4: Simplify right side
    110,897.22x = 9,464,068,488.75
  5. Step 5: Solve for x
    x = 9,464,068,488.75/110,897.22
  6. Step 6: Final answer
    x = 85,340.90

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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.