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Finding the Fourth Proportional to 54,703.88, 82,055.82 and 42,242.08

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Solution

The fourth proportional to 54,703.88, 82,055.82 and 42,242.08 is: 63,363.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,703.88 : 82,055.82 = 42,242.08 : x
  2. Step 2: Convert to fraction form
    54,703.88/82,055.82 = 42,242.08/x
  3. Step 3: Cross multiply
    54,703.88x = 82,055.82 × 42,242.08
  4. Step 4: Simplify right side
    54,703.88x = 3,466,208,512.91
  5. Step 5: Solve for x
    x = 3,466,208,512.91/54,703.88
  6. Step 6: Final answer
    x = 63,363.12

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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.