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Finding the Fourth Proportional to 170,892.73, 256,116.14 and 123,666.90

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Solution

The fourth proportional to 170,892.73, 256,116.14 and 123,666.90 is: 185,339.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,892.73 : 256,116.14 = 123,666.90 : x
  2. Step 2: Convert to fraction form
    170,892.73/256,116.14 = 123,666.90/x
  3. Step 3: Cross multiply
    170,892.73x = 256,116.14 × 123,666.90
  4. Step 4: Simplify right side
    170,892.73x = 31,673,089,073.77
  5. Step 5: Solve for x
    x = 31,673,089,073.77/170,892.73
  6. Step 6: Final answer
    x = 185,339.01

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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.