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Finding the Fourth Proportional to 70,390.67, 97,141.10 and 42,795.29

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Solution

The fourth proportional to 70,390.67, 97,141.10 and 42,795.29 is: 59,058.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,390.67 : 97,141.10 = 42,795.29 : x
  2. Step 2: Convert to fraction form
    70,390.67/97,141.10 = 42,795.29/x
  3. Step 3: Cross multiply
    70,390.67x = 97,141.10 × 42,795.29
  4. Step 4: Simplify right side
    70,390.67x = 4,157,180,845.74
  5. Step 5: Solve for x
    x = 4,157,180,845.74/70,390.67
  6. Step 6: Final answer
    x = 59,058.70

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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.