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Finding the Fourth Proportional to 82,897.69, 124,390.55 and 36,154.21

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Solution

The fourth proportional to 82,897.69, 124,390.55 and 36,154.21 is: 54,250.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,897.69 : 124,390.55 = 36,154.21 : x
  2. Step 2: Convert to fraction form
    82,897.69/124,390.55 = 36,154.21/x
  3. Step 3: Cross multiply
    82,897.69x = 124,390.55 × 36,154.21
  4. Step 4: Simplify right side
    82,897.69x = 4,497,242,066.72
  5. Step 5: Solve for x
    x = 4,497,242,066.72/82,897.69
  6. Step 6: Final answer
    x = 54,250.51

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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.