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Finding the Fourth Proportional to 70,781.61, 97,724.16 and 43,962.93

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Solution

The fourth proportional to 70,781.61, 97,724.16 and 43,962.93 is: 60,697.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,781.61 : 97,724.16 = 43,962.93 : x
  2. Step 2: Convert to fraction form
    70,781.61/97,724.16 = 43,962.93/x
  3. Step 3: Cross multiply
    70,781.61x = 97,724.16 × 43,962.93
  4. Step 4: Simplify right side
    70,781.61x = 4,296,240,405.39
  5. Step 5: Solve for x
    x = 4,296,240,405.39/70,781.61
  6. Step 6: Final answer
    x = 60,697.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.