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Finding the Fourth Proportional to 72,199.95, 108,307.16 and 24,808.80

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Solution

The fourth proportional to 72,199.95, 108,307.16 and 24,808.80 is: 37,215.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,199.95 : 108,307.16 = 24,808.80 : x
  2. Step 2: Convert to fraction form
    72,199.95/108,307.16 = 24,808.80/x
  3. Step 3: Cross multiply
    72,199.95x = 108,307.16 × 24,808.80
  4. Step 4: Simplify right side
    72,199.95x = 2,686,970,546.96
  5. Step 5: Solve for x
    x = 2,686,970,546.96/72,199.95
  6. Step 6: Final answer
    x = 37,215.68

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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.