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Finding the Fourth Proportional to 60,017.80, 89,832.30 and 53,019.40

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Solution

The fourth proportional to 60,017.80, 89,832.30 and 53,019.40 is: 79,357.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,017.80 : 89,832.30 = 53,019.40 : x
  2. Step 2: Convert to fraction form
    60,017.80/89,832.30 = 53,019.40/x
  3. Step 3: Cross multiply
    60,017.80x = 89,832.30 × 53,019.40
  4. Step 4: Simplify right side
    60,017.80x = 4,762,854,646.62
  5. Step 5: Solve for x
    x = 4,762,854,646.62/60,017.80
  6. Step 6: Final answer
    x = 79,357.37

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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.