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Finding the Fourth Proportional to 108,590.70, 149,853.70 and 60,844.98

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Solution

The fourth proportional to 108,590.70, 149,853.70 and 60,844.98 is: 83,965.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,590.70 : 149,853.70 = 60,844.98 : x
  2. Step 2: Convert to fraction form
    108,590.70/149,853.70 = 60,844.98/x
  3. Step 3: Cross multiply
    108,590.70x = 149,853.70 × 60,844.98
  4. Step 4: Simplify right side
    108,590.70x = 9,117,845,379.43
  5. Step 5: Solve for x
    x = 9,117,845,379.43/108,590.70
  6. Step 6: Final answer
    x = 83,965.25

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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.