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Finding the Fourth Proportional to 230,816.59, 318,580.02 and 135,354.04

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Solution

The fourth proportional to 230,816.59, 318,580.02 and 135,354.04 is: 186,819.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,816.59 : 318,580.02 = 135,354.04 : x
  2. Step 2: Convert to fraction form
    230,816.59/318,580.02 = 135,354.04/x
  3. Step 3: Cross multiply
    230,816.59x = 318,580.02 × 135,354.04
  4. Step 4: Simplify right side
    230,816.59x = 43,121,091,973.83
  5. Step 5: Solve for x
    x = 43,121,091,973.83/230,816.59
  6. Step 6: Final answer
    x = 186,819.73

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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.