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Finding the Fourth Proportional to 98,267.20, 147,400.80 and 91,050.10

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Solution

The fourth proportional to 98,267.20, 147,400.80 and 91,050.10 is: 136,575.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,267.20 : 147,400.80 = 91,050.10 : x
  2. Step 2: Convert to fraction form
    98,267.20/147,400.80 = 91,050.10/x
  3. Step 3: Cross multiply
    98,267.20x = 147,400.80 × 91,050.10
  4. Step 4: Simplify right side
    98,267.20x = 13,420,857,580.08
  5. Step 5: Solve for x
    x = 13,420,857,580.08/98,267.20
  6. Step 6: Final answer
    x = 136,575.15

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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.