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Finding the Fourth Proportional to 169,615.70, 254,423.55 and 43,255.70

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Solution

The fourth proportional to 169,615.70, 254,423.55 and 43,255.70 is: 64,883.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,615.70 : 254,423.55 = 43,255.70 : x
  2. Step 2: Convert to fraction form
    169,615.70/254,423.55 = 43,255.70/x
  3. Step 3: Cross multiply
    169,615.70x = 254,423.55 × 43,255.70
  4. Step 4: Simplify right side
    169,615.70x = 11,005,268,751.74
  5. Step 5: Solve for x
    x = 11,005,268,751.74/169,615.70
  6. Step 6: Final answer
    x = 64,883.55

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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.