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Finding the Fourth Proportional to 64,866.92, 97,003.90 and 47,157.08

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Solution

The fourth proportional to 64,866.92, 97,003.90 and 47,157.08 is: 70,520.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,866.92 : 97,003.90 = 47,157.08 : x
  2. Step 2: Convert to fraction form
    64,866.92/97,003.90 = 47,157.08/x
  3. Step 3: Cross multiply
    64,866.92x = 97,003.90 × 47,157.08
  4. Step 4: Simplify right side
    64,866.92x = 4,574,420,672.61
  5. Step 5: Solve for x
    x = 4,574,420,672.61/64,866.92
  6. Step 6: Final answer
    x = 70,520.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.