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Finding the Fourth Proportional to 75,063.48, 103,542.48 and 49,570.08

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Solution

The fourth proportional to 75,063.48, 103,542.48 and 49,570.08 is: 68,376.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,063.48 : 103,542.48 = 49,570.08 : x
  2. Step 2: Convert to fraction form
    75,063.48/103,542.48 = 49,570.08/x
  3. Step 3: Cross multiply
    75,063.48x = 103,542.48 × 49,570.08
  4. Step 4: Simplify right side
    75,063.48x = 5,132,609,017.00
  5. Step 5: Solve for x
    x = 5,132,609,017.00/75,063.48
  6. Step 6: Final answer
    x = 68,376.91

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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.