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Finding the Fourth Proportional to 168,693.60, 253,040.40 and 121,454.40

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Solution

The fourth proportional to 168,693.60, 253,040.40 and 121,454.40 is: 182,181.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,693.60 : 253,040.40 = 121,454.40 : x
  2. Step 2: Convert to fraction form
    168,693.60/253,040.40 = 121,454.40/x
  3. Step 3: Cross multiply
    168,693.60x = 253,040.40 × 121,454.40
  4. Step 4: Simplify right side
    168,693.60x = 30,732,869,957.76
  5. Step 5: Solve for x
    x = 30,732,869,957.76/168,693.60
  6. Step 6: Final answer
    x = 182,181.60

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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.