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Finding the Fourth Proportional to 70,377.42, 97,130.49 and 43,169.76

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Solution

The fourth proportional to 70,377.42, 97,130.49 and 43,169.76 is: 59,580.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,377.42 : 97,130.49 = 43,169.76 : x
  2. Step 2: Convert to fraction form
    70,377.42/97,130.49 = 43,169.76/x
  3. Step 3: Cross multiply
    70,377.42x = 97,130.49 × 43,169.76
  4. Step 4: Simplify right side
    70,377.42x = 4,193,099,941.98
  5. Step 5: Solve for x
    x = 4,193,099,941.98/70,377.42
  6. Step 6: Final answer
    x = 59,580.19

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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.