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Finding the Fourth Proportional to 73,718.40, 110,577.60 and 65,553.60

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Solution

The fourth proportional to 73,718.40, 110,577.60 and 65,553.60 is: 98,330.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,718.40 : 110,577.60 = 65,553.60 : x
  2. Step 2: Convert to fraction form
    73,718.40/110,577.60 = 65,553.60/x
  3. Step 3: Cross multiply
    73,718.40x = 110,577.60 × 65,553.60
  4. Step 4: Simplify right side
    73,718.40x = 7,248,759,759.36
  5. Step 5: Solve for x
    x = 7,248,759,759.36/73,718.40
  6. Step 6: Final answer
    x = 98,330.40

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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.