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Finding the Fourth Proportional to 52,669.80, 79,004.70 and 48,004.20

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Solution

The fourth proportional to 52,669.80, 79,004.70 and 48,004.20 is: 72,006.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,669.80 : 79,004.70 = 48,004.20 : x
  2. Step 2: Convert to fraction form
    52,669.80/79,004.70 = 48,004.20/x
  3. Step 3: Cross multiply
    52,669.80x = 79,004.70 × 48,004.20
  4. Step 4: Simplify right side
    52,669.80x = 3,792,557,419.74
  5. Step 5: Solve for x
    x = 3,792,557,419.74/52,669.80
  6. Step 6: Final answer
    x = 72,006.30

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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.