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Finding the Fourth Proportional to 70,554.87, 97,332.80 and 43,687.58

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Solution

The fourth proportional to 70,554.87, 97,332.80 and 43,687.58 is: 60,268.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,554.87 : 97,332.80 = 43,687.58 : x
  2. Step 2: Convert to fraction form
    70,554.87/97,332.80 = 43,687.58/x
  3. Step 3: Cross multiply
    70,554.87x = 97,332.80 × 43,687.58
  4. Step 4: Simplify right side
    70,554.87x = 4,252,233,781.52
  5. Step 5: Solve for x
    x = 4,252,233,781.52/70,554.87
  6. Step 6: Final answer
    x = 60,268.47

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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.