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Finding the Fourth Proportional to 55,881.60, 83,649.60 and 49,660.80

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Solution

The fourth proportional to 55,881.60, 83,649.60 and 49,660.80 is: 74,337.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,881.60 : 83,649.60 = 49,660.80 : x
  2. Step 2: Convert to fraction form
    55,881.60/83,649.60 = 49,660.80/x
  3. Step 3: Cross multiply
    55,881.60x = 83,649.60 × 49,660.80
  4. Step 4: Simplify right side
    55,881.60x = 4,154,106,055.68
  5. Step 5: Solve for x
    x = 4,154,106,055.68/55,881.60
  6. Step 6: Final answer
    x = 74,337.64

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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.