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Finding the Fourth Proportional to 98,800.80, 148,298.40 and 48,937.20

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Solution

The fourth proportional to 98,800.80, 148,298.40 and 48,937.20 is: 73,453.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,800.80 : 148,298.40 = 48,937.20 : x
  2. Step 2: Convert to fraction form
    98,800.80/148,298.40 = 48,937.20/x
  3. Step 3: Cross multiply
    98,800.80x = 148,298.40 × 48,937.20
  4. Step 4: Simplify right side
    98,800.80x = 7,257,308,460.48
  5. Step 5: Solve for x
    x = 7,257,308,460.48/98,800.80
  6. Step 6: Final answer
    x = 73,453.94

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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.