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Finding the Fourth Proportional to 70,193.76, 96,865.88 and 39,566.64

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Solution

The fourth proportional to 70,193.76, 96,865.88 and 39,566.64 is: 54,601.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,193.76 : 96,865.88 = 39,566.64 : x
  2. Step 2: Convert to fraction form
    70,193.76/96,865.88 = 39,566.64/x
  3. Step 3: Cross multiply
    70,193.76x = 96,865.88 × 39,566.64
  4. Step 4: Simplify right side
    70,193.76x = 3,832,657,402.24
  5. Step 5: Solve for x
    x = 3,832,657,402.24/70,193.76
  6. Step 6: Final answer
    x = 54,601.11

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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.