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Finding the Fourth Proportional to 103,671.26, 143,066.55 and 58,959.26

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Solution

The fourth proportional to 103,671.26, 143,066.55 and 58,959.26 is: 81,363.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,671.26 : 143,066.55 = 58,959.26 : x
  2. Step 2: Convert to fraction form
    103,671.26/143,066.55 = 58,959.26/x
  3. Step 3: Cross multiply
    103,671.26x = 143,066.55 × 58,959.26
  4. Step 4: Simplify right side
    103,671.26x = 8,435,097,918.75
  5. Step 5: Solve for x
    x = 8,435,097,918.75/103,671.26
  6. Step 6: Final answer
    x = 81,363.90

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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.