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Finding the Fourth Proportional to 68,350.70, 102,526.05 and 65,726.30

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Solution

The fourth proportional to 68,350.70, 102,526.05 and 65,726.30 is: 98,589.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,350.70 : 102,526.05 = 65,726.30 : x
  2. Step 2: Convert to fraction form
    68,350.70/102,526.05 = 65,726.30/x
  3. Step 3: Cross multiply
    68,350.70x = 102,526.05 × 65,726.30
  4. Step 4: Simplify right side
    68,350.70x = 6,738,657,920.12
  5. Step 5: Solve for x
    x = 6,738,657,920.12/68,350.70
  6. Step 6: Final answer
    x = 98,589.45

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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.