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Finding the Fourth Proportional to 71,263.68, 106,764.30 and 63,390.48

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Solution

The fourth proportional to 71,263.68, 106,764.30 and 63,390.48 is: 94,969.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,263.68 : 106,764.30 = 63,390.48 : x
  2. Step 2: Convert to fraction form
    71,263.68/106,764.30 = 63,390.48/x
  3. Step 3: Cross multiply
    71,263.68x = 106,764.30 × 63,390.48
  4. Step 4: Simplify right side
    71,263.68x = 6,767,840,223.86
  5. Step 5: Solve for x
    x = 6,767,840,223.86/71,263.68
  6. Step 6: Final answer
    x = 94,969.00

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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.