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Finding the Fourth Proportional to 70,442.61, 97,220.77 and 43,593.77

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Solution

The fourth proportional to 70,442.61, 97,220.77 and 43,593.77 is: 60,165.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,442.61 : 97,220.77 = 43,593.77 : x
  2. Step 2: Convert to fraction form
    70,442.61/97,220.77 = 43,593.77/x
  3. Step 3: Cross multiply
    70,442.61x = 97,220.77 × 43,593.77
  4. Step 4: Simplify right side
    70,442.61x = 4,238,219,808.54
  5. Step 5: Solve for x
    x = 4,238,219,808.54/70,442.61
  6. Step 6: Final answer
    x = 60,165.57

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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.