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Finding the Fourth Proportional to 174,628.80, 261,943.20 and 48,268.80

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Solution

The fourth proportional to 174,628.80, 261,943.20 and 48,268.80 is: 72,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,628.80 : 261,943.20 = 48,268.80 : x
  2. Step 2: Convert to fraction form
    174,628.80/261,943.20 = 48,268.80/x
  3. Step 3: Cross multiply
    174,628.80x = 261,943.20 × 48,268.80
  4. Step 4: Simplify right side
    174,628.80x = 12,643,683,932.16
  5. Step 5: Solve for x
    x = 12,643,683,932.16/174,628.80
  6. Step 6: Final answer
    x = 72,403.20

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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.