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Finding the Fourth Proportional to 48,596.40, 72,700.20 and 42,094.80

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Solution

The fourth proportional to 48,596.40, 72,700.20 and 42,094.80 is: 62,973.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,596.40 : 72,700.20 = 42,094.80 : x
  2. Step 2: Convert to fraction form
    48,596.40/72,700.20 = 42,094.80/x
  3. Step 3: Cross multiply
    48,596.40x = 72,700.20 × 42,094.80
  4. Step 4: Simplify right side
    48,596.40x = 3,060,300,378.96
  5. Step 5: Solve for x
    x = 3,060,300,378.96/48,596.40
  6. Step 6: Final answer
    x = 62,973.81

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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.