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Finding the Fourth Proportional to 98,724.20, 148,107.90 and 48,828.20

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Solution

The fourth proportional to 98,724.20, 148,107.90 and 48,828.20 is: 73,252.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,724.20 : 148,107.90 = 48,828.20 : x
  2. Step 2: Convert to fraction form
    98,724.20/148,107.90 = 48,828.20/x
  3. Step 3: Cross multiply
    98,724.20x = 148,107.90 × 48,828.20
  4. Step 4: Simplify right side
    98,724.20x = 7,231,842,162.78
  5. Step 5: Solve for x
    x = 7,231,842,162.78/98,724.20
  6. Step 6: Final answer
    x = 73,252.98

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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.