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Finding the Fourth Proportional to 65,330.40, 98,053.20 and 55,999.20

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Solution

The fourth proportional to 65,330.40, 98,053.20 and 55,999.20 is: 84,048.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,330.40 : 98,053.20 = 55,999.20 : x
  2. Step 2: Convert to fraction form
    65,330.40/98,053.20 = 55,999.20/x
  3. Step 3: Cross multiply
    65,330.40x = 98,053.20 × 55,999.20
  4. Step 4: Simplify right side
    65,330.40x = 5,490,900,757.44
  5. Step 5: Solve for x
    x = 5,490,900,757.44/65,330.40
  6. Step 6: Final answer
    x = 84,048.17

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1.5x scale

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.