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Finding the Fourth Proportional to 106,984.80, 160,477.20 and 40,427.10

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Solution

The fourth proportional to 106,984.80, 160,477.20 and 40,427.10 is: 60,640.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,984.80 : 160,477.20 = 40,427.10 : x
  2. Step 2: Convert to fraction form
    106,984.80/160,477.20 = 40,427.10/x
  3. Step 3: Cross multiply
    106,984.80x = 160,477.20 × 40,427.10
  4. Step 4: Simplify right side
    106,984.80x = 6,487,627,812.12
  5. Step 5: Solve for x
    x = 6,487,627,812.12/106,984.80
  6. Step 6: Final answer
    x = 60,640.65

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1.5x scale

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.