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Finding the Fourth Proportional to 61,159.42, 91,748.25 and 21,713.23

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Solution

The fourth proportional to 61,159.42, 91,748.25 and 21,713.23 is: 32,573.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,159.42 : 91,748.25 = 21,713.23 : x
  2. Step 2: Convert to fraction form
    61,159.42/91,748.25 = 21,713.23/x
  3. Step 3: Cross multiply
    61,159.42x = 91,748.25 × 21,713.23
  4. Step 4: Simplify right side
    61,159.42x = 1,992,150,854.35
  5. Step 5: Solve for x
    x = 1,992,150,854.35/61,159.42
  6. Step 6: Final answer
    x = 32,573.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.