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Finding the Fourth Proportional to 58,909.80, 88,235.10 and 52,343.40

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Solution

The fourth proportional to 58,909.80, 88,235.10 and 52,343.40 is: 78,399.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,909.80 : 88,235.10 = 52,343.40 : x
  2. Step 2: Convert to fraction form
    58,909.80/88,235.10 = 52,343.40/x
  3. Step 3: Cross multiply
    58,909.80x = 88,235.10 × 52,343.40
  4. Step 4: Simplify right side
    58,909.80x = 4,618,525,133.34
  5. Step 5: Solve for x
    x = 4,618,525,133.34/58,909.80
  6. Step 6: Final answer
    x = 78,399.95

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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.