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Finding the Fourth Proportional to 178,809.88, 246,665.10 and 121,452.16

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Solution

The fourth proportional to 178,809.88, 246,665.10 and 121,452.16 is: 167,541.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,809.88 : 246,665.10 = 121,452.16 : x
  2. Step 2: Convert to fraction form
    178,809.88/246,665.10 = 121,452.16/x
  3. Step 3: Cross multiply
    178,809.88x = 246,665.10 × 121,452.16
  4. Step 4: Simplify right side
    178,809.88x = 29,958,009,191.62
  5. Step 5: Solve for x
    x = 29,958,009,191.62/178,809.88
  6. Step 6: Final answer
    x = 167,541.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.