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Finding the Fourth Proportional to 103,093.84, 142,256.20 and 60,636.88

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Solution

The fourth proportional to 103,093.84, 142,256.20 and 60,636.88 is: 83,671.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,093.84 : 142,256.20 = 60,636.88 : x
  2. Step 2: Convert to fraction form
    103,093.84/142,256.20 = 60,636.88/x
  3. Step 3: Cross multiply
    103,093.84x = 142,256.20 × 60,636.88
  4. Step 4: Simplify right side
    103,093.84x = 8,625,972,128.66
  5. Step 5: Solve for x
    x = 8,625,972,128.66/103,093.84
  6. Step 6: Final answer
    x = 83,671.07

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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.