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Finding the Fourth Proportional to 71,346.88, 106,392.29 and 66,360.52

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Solution

The fourth proportional to 71,346.88, 106,392.29 and 66,360.52 is: 98,956.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,346.88 : 106,392.29 = 66,360.52 : x
  2. Step 2: Convert to fraction form
    71,346.88/106,392.29 = 66,360.52/x
  3. Step 3: Cross multiply
    71,346.88x = 106,392.29 × 66,360.52
  4. Step 4: Simplify right side
    71,346.88x = 7,060,247,688.39
  5. Step 5: Solve for x
    x = 7,060,247,688.39/71,346.88
  6. Step 6: Final answer
    x = 98,956.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.