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Finding the Fourth Proportional to 109,307.96, 150,801.18 and 66,792.68

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Solution

The fourth proportional to 109,307.96, 150,801.18 and 66,792.68 is: 92,147.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,307.96 : 150,801.18 = 66,792.68 : x
  2. Step 2: Convert to fraction form
    109,307.96/150,801.18 = 66,792.68/x
  3. Step 3: Cross multiply
    109,307.96x = 150,801.18 × 66,792.68
  4. Step 4: Simplify right side
    109,307.96x = 10,072,414,959.36
  5. Step 5: Solve for x
    x = 10,072,414,959.36/109,307.96
  6. Step 6: Final answer
    x = 92,147.13

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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.