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Finding the Fourth Proportional to 164,899.60, 247,464.60 and 71,472.40

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Solution

The fourth proportional to 164,899.60, 247,464.60 and 71,472.40 is: 107,258.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,899.60 : 247,464.60 = 71,472.40 : x
  2. Step 2: Convert to fraction form
    164,899.60/247,464.60 = 71,472.40/x
  3. Step 3: Cross multiply
    164,899.60x = 247,464.60 × 71,472.40
  4. Step 4: Simplify right side
    164,899.60x = 17,686,888,877.04
  5. Step 5: Solve for x
    x = 17,686,888,877.04/164,899.60
  6. Step 6: Final answer
    x = 107,258.53

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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.