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Finding the Fourth Proportional to 213,691.86, 320,444.28 and 101,404.26

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Solution

The fourth proportional to 213,691.86, 320,444.28 and 101,404.26 is: 152,062.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,691.86 : 320,444.28 = 101,404.26 : x
  2. Step 2: Convert to fraction form
    213,691.86/320,444.28 = 101,404.26/x
  3. Step 3: Cross multiply
    213,691.86x = 320,444.28 × 101,404.26
  4. Step 4: Simplify right side
    213,691.86x = 32,494,415,084.63
  5. Step 5: Solve for x
    x = 32,494,415,084.63/213,691.86
  6. Step 6: Final answer
    x = 152,062.02

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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.