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Finding the Fourth Proportional to 58,972.80, 88,329.60 and 52,406.40

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Solution

The fourth proportional to 58,972.80, 88,329.60 and 52,406.40 is: 78,494.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,972.80 : 88,329.60 = 52,406.40 : x
  2. Step 2: Convert to fraction form
    58,972.80/88,329.60 = 52,406.40/x
  3. Step 3: Cross multiply
    58,972.80x = 88,329.60 × 52,406.40
  4. Step 4: Simplify right side
    58,972.80x = 4,629,036,349.44
  5. Step 5: Solve for x
    x = 4,629,036,349.44/58,972.80
  6. Step 6: Final answer
    x = 78,494.43

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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.