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Finding the Fourth Proportional to 98,348.80, 147,580.80 and 36,025.60

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Solution

The fourth proportional to 98,348.80, 147,580.80 and 36,025.60 is: 54,059.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,348.80 : 147,580.80 = 36,025.60 : x
  2. Step 2: Convert to fraction form
    98,348.80/147,580.80 = 36,025.60/x
  3. Step 3: Cross multiply
    98,348.80x = 147,580.80 × 36,025.60
  4. Step 4: Simplify right side
    98,348.80x = 5,316,686,868.48
  5. Step 5: Solve for x
    x = 5,316,686,868.48/98,348.80
  6. Step 6: Final answer
    x = 54,059.50

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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.