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Finding the Fourth Proportional to 103,445.70, 155,168.55 and 44,287.35

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Solution

The fourth proportional to 103,445.70, 155,168.55 and 44,287.35 is: 66,431.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,445.70 : 155,168.55 = 44,287.35 : x
  2. Step 2: Convert to fraction form
    103,445.70/155,168.55 = 44,287.35/x
  3. Step 3: Cross multiply
    103,445.70x = 155,168.55 × 44,287.35
  4. Step 4: Simplify right side
    103,445.70x = 6,872,003,882.84
  5. Step 5: Solve for x
    x = 6,872,003,882.84/103,445.70
  6. Step 6: Final answer
    x = 66,431.03

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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.