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Finding the Fourth Proportional to 236,543.40, 354,231.90 and 157,228.20

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Solution

The fourth proportional to 236,543.40, 354,231.90 and 157,228.20 is: 235,454.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,543.40 : 354,231.90 = 157,228.20 : x
  2. Step 2: Convert to fraction form
    236,543.40/354,231.90 = 157,228.20/x
  3. Step 3: Cross multiply
    236,543.40x = 354,231.90 × 157,228.20
  4. Step 4: Simplify right side
    236,543.40x = 55,695,244,019.58
  5. Step 5: Solve for x
    x = 55,695,244,019.58/236,543.40
  6. Step 6: Final answer
    x = 235,454.65

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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.