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Finding the Fourth Proportional to 181,504.90, 272,220.90 and 86,734.90

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Solution

The fourth proportional to 181,504.90, 272,220.90 and 86,734.90 is: 130,084.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,504.90 : 272,220.90 = 86,734.90 : x
  2. Step 2: Convert to fraction form
    181,504.90/272,220.90 = 86,734.90/x
  3. Step 3: Cross multiply
    181,504.90x = 272,220.90 × 86,734.90
  4. Step 4: Simplify right side
    181,504.90x = 23,611,052,539.41
  5. Step 5: Solve for x
    x = 23,611,052,539.41/181,504.90
  6. Step 6: Final answer
    x = 130,084.93

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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.