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Finding the Fourth Proportional to 64,327.60, 88,772.06 and 39,177.10

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Solution

The fourth proportional to 64,327.60, 88,772.06 and 39,177.10 is: 54,064.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,327.60 : 88,772.06 = 39,177.10 : x
  2. Step 2: Convert to fraction form
    64,327.60/88,772.06 = 39,177.10/x
  3. Step 3: Cross multiply
    64,327.60x = 88,772.06 × 39,177.10
  4. Step 4: Simplify right side
    64,327.60x = 3,477,831,871.83
  5. Step 5: Solve for x
    x = 3,477,831,871.83/64,327.60
  6. Step 6: Final answer
    x = 54,064.38

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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.