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Finding the Fourth Proportional to 181,684.70, 272,527.14 and 81,728.12

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Solution

The fourth proportional to 181,684.70, 272,527.14 and 81,728.12 is: 122,592.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,684.70 : 272,527.14 = 81,728.12 : x
  2. Step 2: Convert to fraction form
    181,684.70/272,527.14 = 81,728.12/x
  3. Step 3: Cross multiply
    181,684.70x = 272,527.14 × 81,728.12
  4. Step 4: Simplify right side
    181,684.70x = 22,273,130,801.18
  5. Step 5: Solve for x
    x = 22,273,130,801.18/181,684.70
  6. Step 6: Final answer
    x = 122,592.22

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1.5x scale

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.