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Finding the Fourth Proportional to 84,848.80, 127,273.20 and 65,226.40

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Solution

The fourth proportional to 84,848.80, 127,273.20 and 65,226.40 is: 97,839.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,848.80 : 127,273.20 = 65,226.40 : x
  2. Step 2: Convert to fraction form
    84,848.80/127,273.20 = 65,226.40/x
  3. Step 3: Cross multiply
    84,848.80x = 127,273.20 × 65,226.40
  4. Step 4: Simplify right side
    84,848.80x = 8,301,572,652.48
  5. Step 5: Solve for x
    x = 8,301,572,652.48/84,848.80
  6. Step 6: Final answer
    x = 97,839.60

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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.