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Finding the Fourth Proportional to 70,842, 97,753.44 and 40,625.76

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Solution

The fourth proportional to 70,842, 97,753.44 and 40,625.76 is: 56,058.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,842 : 97,753.44 = 40,625.76 : x
  2. Step 2: Convert to fraction form
    70,842/97,753.44 = 40,625.76/x
  3. Step 3: Cross multiply
    70,842x = 97,753.44 × 40,625.76
  4. Step 4: Simplify right side
    70,842x = 3,971,307,792.61
  5. Step 5: Solve for x
    x = 3,971,307,792.61/70,842
  6. Step 6: Final answer
    x = 56,058.66

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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.