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Finding the Fourth Proportional to 79,362.40, 118,849.20 and 37,760.80

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Solution

The fourth proportional to 79,362.40, 118,849.20 and 37,760.80 is: 56,548.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,362.40 : 118,849.20 = 37,760.80 : x
  2. Step 2: Convert to fraction form
    79,362.40/118,849.20 = 37,760.80/x
  3. Step 3: Cross multiply
    79,362.40x = 118,849.20 × 37,760.80
  4. Step 4: Simplify right side
    79,362.40x = 4,487,840,871.36
  5. Step 5: Solve for x
    x = 4,487,840,871.36/79,362.40
  6. Step 6: Final answer
    x = 56,548.70

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1.5x scale

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.