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Finding the Fourth Proportional to 98,818.80, 148,325.40 and 48,955.20

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Solution

The fourth proportional to 98,818.80, 148,325.40 and 48,955.20 is: 73,480.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,818.80 : 148,325.40 = 48,955.20 : x
  2. Step 2: Convert to fraction form
    98,818.80/148,325.40 = 48,955.20/x
  3. Step 3: Cross multiply
    98,818.80x = 148,325.40 × 48,955.20
  4. Step 4: Simplify right side
    98,818.80x = 7,261,299,622.08
  5. Step 5: Solve for x
    x = 7,261,299,622.08/98,818.80
  6. Step 6: Final answer
    x = 73,480.95

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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.