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Finding the Fourth Proportional to 168,015.60, 252,023.40 and 74,703.60

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Solution

The fourth proportional to 168,015.60, 252,023.40 and 74,703.60 is: 112,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,015.60 : 252,023.40 = 74,703.60 : x
  2. Step 2: Convert to fraction form
    168,015.60/252,023.40 = 74,703.60/x
  3. Step 3: Cross multiply
    168,015.60x = 252,023.40 × 74,703.60
  4. Step 4: Simplify right side
    168,015.60x = 18,827,055,264.24
  5. Step 5: Solve for x
    x = 18,827,055,264.24/168,015.60
  6. Step 6: Final answer
    x = 112,055.40

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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.