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Finding the Fourth Proportional to 111,229.74, 153,506.50 and 62,840.56

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Solution

The fourth proportional to 111,229.74, 153,506.50 and 62,840.56 is: 86,725.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,229.74 : 153,506.50 = 62,840.56 : x
  2. Step 2: Convert to fraction form
    111,229.74/153,506.50 = 62,840.56/x
  3. Step 3: Cross multiply
    111,229.74x = 153,506.50 × 62,840.56
  4. Step 4: Simplify right side
    111,229.74x = 9,646,434,423.64
  5. Step 5: Solve for x
    x = 9,646,434,423.64/111,229.74
  6. Step 6: Final answer
    x = 86,725.32

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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.