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Finding the Fourth Proportional to 213,066.01, 319,294.50 and 156,462.13

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Solution

The fourth proportional to 213,066.01, 319,294.50 and 156,462.13 is: 234,469.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,066.01 : 319,294.50 = 156,462.13 : x
  2. Step 2: Convert to fraction form
    213,066.01/319,294.50 = 156,462.13/x
  3. Step 3: Cross multiply
    213,066.01x = 319,294.50 × 156,462.13
  4. Step 4: Simplify right side
    213,066.01x = 49,957,497,567.29
  5. Step 5: Solve for x
    x = 49,957,497,567.29/213,066.01
  6. Step 6: Final answer
    x = 234,469.58

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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.