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Finding the Fourth Proportional to 98,800.48, 148,200.48 and 76,343.80

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Solution

The fourth proportional to 98,800.48, 148,200.48 and 76,343.80 is: 114,515.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,800.48 : 148,200.48 = 76,343.80 : x
  2. Step 2: Convert to fraction form
    98,800.48/148,200.48 = 76,343.80/x
  3. Step 3: Cross multiply
    98,800.48x = 148,200.48 × 76,343.80
  4. Step 4: Simplify right side
    98,800.48x = 11,314,187,064.02
  5. Step 5: Solve for x
    x = 11,314,187,064.02/98,800.48
  6. Step 6: Final answer
    x = 114,515.51

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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.