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Finding the Fourth Proportional to 91,662.96, 126,346.32 and 64,762.32

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Solution

The fourth proportional to 91,662.96, 126,346.32 and 64,762.32 is: 89,267.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,662.96 : 126,346.32 = 64,762.32 : x
  2. Step 2: Convert to fraction form
    91,662.96/126,346.32 = 64,762.32/x
  3. Step 3: Cross multiply
    91,662.96x = 126,346.32 × 64,762.32
  4. Step 4: Simplify right side
    91,662.96x = 8,182,480,806.66
  5. Step 5: Solve for x
    x = 8,182,480,806.66/91,662.96
  6. Step 6: Final answer
    x = 89,267.04

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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.