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Finding the Fourth Proportional to 52,565.80, 78,848.70 and 43,234.60

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Solution

The fourth proportional to 52,565.80, 78,848.70 and 43,234.60 is: 64,851.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,565.80 : 78,848.70 = 43,234.60 : x
  2. Step 2: Convert to fraction form
    52,565.80/78,848.70 = 43,234.60/x
  3. Step 3: Cross multiply
    52,565.80x = 78,848.70 × 43,234.60
  4. Step 4: Simplify right side
    52,565.80x = 3,408,992,005.02
  5. Step 5: Solve for x
    x = 3,408,992,005.02/52,565.80
  6. Step 6: Final answer
    x = 64,851.90

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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.