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Finding the Fourth Proportional to 185,191.10, 277,458.60 and 156,978.80

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Solution

The fourth proportional to 185,191.10, 277,458.60 and 156,978.80 is: 235,190.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,191.10 : 277,458.60 = 156,978.80 : x
  2. Step 2: Convert to fraction form
    185,191.10/277,458.60 = 156,978.80/x
  3. Step 3: Cross multiply
    185,191.10x = 277,458.60 × 156,978.80
  4. Step 4: Simplify right side
    185,191.10x = 43,555,118,077.68
  5. Step 5: Solve for x
    x = 43,555,118,077.68/185,191.10
  6. Step 6: Final answer
    x = 235,190.13

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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.