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Finding the Fourth Proportional to 75,281.69, 103,877.28 and 43,010.69

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Solution

The fourth proportional to 75,281.69, 103,877.28 and 43,010.69 is: 59,348.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,281.69 : 103,877.28 = 43,010.69 : x
  2. Step 2: Convert to fraction form
    75,281.69/103,877.28 = 43,010.69/x
  3. Step 3: Cross multiply
    75,281.69x = 103,877.28 × 43,010.69
  4. Step 4: Simplify right side
    75,281.69x = 4,467,832,968.74
  5. Step 5: Solve for x
    x = 4,467,832,968.74/75,281.69
  6. Step 6: Final answer
    x = 59,348.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.