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Finding the Fourth Proportional to 98,883.40, 148,670.70 and 96,809.80

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Solution

The fourth proportional to 98,883.40, 148,670.70 and 96,809.80 is: 145,553.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,883.40 : 148,670.70 = 96,809.80 : x
  2. Step 2: Convert to fraction form
    98,883.40/148,670.70 = 96,809.80/x
  3. Step 3: Cross multiply
    98,883.40x = 148,670.70 × 96,809.80
  4. Step 4: Simplify right side
    98,883.40x = 14,392,780,732.86
  5. Step 5: Solve for x
    x = 14,392,780,732.86/98,883.40
  6. Step 6: Final answer
    x = 145,553.05

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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.