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Finding the Fourth Proportional to 153,986.60, 231,004.20 and 48,816.20

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Solution

The fourth proportional to 153,986.60, 231,004.20 and 48,816.20 is: 73,232.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,986.60 : 231,004.20 = 48,816.20 : x
  2. Step 2: Convert to fraction form
    153,986.60/231,004.20 = 48,816.20/x
  3. Step 3: Cross multiply
    153,986.60x = 231,004.20 × 48,816.20
  4. Step 4: Simplify right side
    153,986.60x = 11,276,747,228.04
  5. Step 5: Solve for x
    x = 11,276,747,228.04/153,986.60
  6. Step 6: Final answer
    x = 73,232.00

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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.