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Finding the Fourth Proportional to 98,718.40, 148,092.88 and 32,142.88

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Solution

The fourth proportional to 98,718.40, 148,092.88 and 32,142.88 is: 48,219.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,718.40 : 148,092.88 = 32,142.88 : x
  2. Step 2: Convert to fraction form
    98,718.40/148,092.88 = 32,142.88/x
  3. Step 3: Cross multiply
    98,718.40x = 148,092.88 × 32,142.88
  4. Step 4: Simplify right side
    98,718.40x = 4,760,131,670.69
  5. Step 5: Solve for x
    x = 4,760,131,670.69/98,718.40
  6. Step 6: Final answer
    x = 48,219.30

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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.