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Finding the Fourth Proportional to 73,888.98, 101,969.24 and 40,354.98

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Solution

The fourth proportional to 73,888.98, 101,969.24 and 40,354.98 is: 55,691.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,888.98 : 101,969.24 = 40,354.98 : x
  2. Step 2: Convert to fraction form
    73,888.98/101,969.24 = 40,354.98/x
  3. Step 3: Cross multiply
    73,888.98x = 101,969.24 × 40,354.98
  4. Step 4: Simplify right side
    73,888.98x = 4,114,966,439.04
  5. Step 5: Solve for x
    x = 4,114,966,439.04/73,888.98
  6. Step 6: Final answer
    x = 55,691.21

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1.5x scale

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.