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Finding the Fourth Proportional to 73,962.40, 110,943.60 and 21,373.60

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Solution

The fourth proportional to 73,962.40, 110,943.60 and 21,373.60 is: 32,060.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,962.40 : 110,943.60 = 21,373.60 : x
  2. Step 2: Convert to fraction form
    73,962.40/110,943.60 = 21,373.60/x
  3. Step 3: Cross multiply
    73,962.40x = 110,943.60 × 21,373.60
  4. Step 4: Simplify right side
    73,962.40x = 2,371,264,128.96
  5. Step 5: Solve for x
    x = 2,371,264,128.96/73,962.40
  6. Step 6: Final answer
    x = 32,060.40

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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.