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Finding the Fourth Proportional to 99,404.80, 148,675.20 and 88,950.40

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Solution

The fourth proportional to 99,404.80, 148,675.20 and 88,950.40 is: 133,039.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,404.80 : 148,675.20 = 88,950.40 : x
  2. Step 2: Convert to fraction form
    99,404.80/148,675.20 = 88,950.40/x
  3. Step 3: Cross multiply
    99,404.80x = 148,675.20 × 88,950.40
  4. Step 4: Simplify right side
    99,404.80x = 13,224,718,510.08
  5. Step 5: Solve for x
    x = 13,224,718,510.08/99,404.80
  6. Step 6: Final answer
    x = 133,039.03

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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.