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Finding the Fourth Proportional to 98,807.60, 148,110.60 and 48,810.80

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Solution

The fourth proportional to 98,807.60, 148,110.60 and 48,810.80 is: 73,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,807.60 : 148,110.60 = 48,810.80 : x
  2. Step 2: Convert to fraction form
    98,807.60/148,110.60 = 48,810.80/x
  3. Step 3: Cross multiply
    98,807.60x = 148,110.60 × 48,810.80
  4. Step 4: Simplify right side
    98,807.60x = 7,229,396,874.48
  5. Step 5: Solve for x
    x = 7,229,396,874.48/98,807.60
  6. Step 6: Final answer
    x = 73,166.40

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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.