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Finding the Fourth Proportional to 141,488.61, 212,240.48 and 36,308.49

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Solution

The fourth proportional to 141,488.61, 212,240.48 and 36,308.49 is: 54,464.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,488.61 : 212,240.48 = 36,308.49 : x
  2. Step 2: Convert to fraction form
    141,488.61/212,240.48 = 36,308.49/x
  3. Step 3: Cross multiply
    141,488.61x = 212,240.48 × 36,308.49
  4. Step 4: Simplify right side
    141,488.61x = 7,706,131,345.68
  5. Step 5: Solve for x
    x = 7,706,131,345.68/141,488.61
  6. Step 6: Final answer
    x = 54,464.68

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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.