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Finding the Fourth Proportional to 98,884.40, 148,672.20 and 96,810.80

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Solution

The fourth proportional to 98,884.40, 148,672.20 and 96,810.80 is: 145,554.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,884.40 : 148,672.20 = 96,810.80 : x
  2. Step 2: Convert to fraction form
    98,884.40/148,672.20 = 96,810.80/x
  3. Step 3: Cross multiply
    98,884.40x = 148,672.20 × 96,810.80
  4. Step 4: Simplify right side
    98,884.40x = 14,393,074,619.76
  5. Step 5: Solve for x
    x = 14,393,074,619.76/98,884.40
  6. Step 6: Final answer
    x = 145,554.55

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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.