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Finding the Fourth Proportional to 98,628.80, 148,016.10 and 65,337.80

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Solution

The fourth proportional to 98,628.80, 148,016.10 and 65,337.80 is: 98,054.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,628.80 : 148,016.10 = 65,337.80 : x
  2. Step 2: Convert to fraction form
    98,628.80/148,016.10 = 65,337.80/x
  3. Step 3: Cross multiply
    98,628.80x = 148,016.10 × 65,337.80
  4. Step 4: Simplify right side
    98,628.80x = 9,671,046,338.58
  5. Step 5: Solve for x
    x = 9,671,046,338.58/98,628.80
  6. Step 6: Final answer
    x = 98,054.99

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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.