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Finding the Fourth Proportional to 111,065.70, 153,266.72 and 62,682.88

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Solution

The fourth proportional to 111,065.70, 153,266.72 and 62,682.88 is: 86,500.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,065.70 : 153,266.72 = 62,682.88 : x
  2. Step 2: Convert to fraction form
    111,065.70/153,266.72 = 62,682.88/x
  3. Step 3: Cross multiply
    111,065.70x = 153,266.72 × 62,682.88
  4. Step 4: Simplify right side
    111,065.70x = 9,607,199,417.75
  5. Step 5: Solve for x
    x = 9,607,199,417.75/111,065.70
  6. Step 6: Final answer
    x = 86,500.15

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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.