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Finding the Fourth Proportional to 99,187.20, 148,780.80 and 94,348.80

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Solution

The fourth proportional to 99,187.20, 148,780.80 and 94,348.80 is: 141,523.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,187.20 : 148,780.80 = 94,348.80 : x
  2. Step 2: Convert to fraction form
    99,187.20/148,780.80 = 94,348.80/x
  3. Step 3: Cross multiply
    99,187.20x = 148,780.80 × 94,348.80
  4. Step 4: Simplify right side
    99,187.20x = 14,037,289,943.04
  5. Step 5: Solve for x
    x = 14,037,289,943.04/99,187.20
  6. Step 6: Final answer
    x = 141,523.20

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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.