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Finding the Fourth Proportional to 141,006.80, 211,510.20 and 99,016.40

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Solution

The fourth proportional to 141,006.80, 211,510.20 and 99,016.40 is: 148,524.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,006.80 : 211,510.20 = 99,016.40 : x
  2. Step 2: Convert to fraction form
    141,006.80/211,510.20 = 99,016.40/x
  3. Step 3: Cross multiply
    141,006.80x = 211,510.20 × 99,016.40
  4. Step 4: Simplify right side
    141,006.80x = 20,942,978,567.28
  5. Step 5: Solve for x
    x = 20,942,978,567.28/141,006.80
  6. Step 6: Final answer
    x = 148,524.60

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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.