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Finding the Fourth Proportional to 74,065.99, 111,098.98 and 40,768.91

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Solution

The fourth proportional to 74,065.99, 111,098.98 and 40,768.91 is: 61,153.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,065.99 : 111,098.98 = 40,768.91 : x
  2. Step 2: Convert to fraction form
    74,065.99/111,098.98 = 40,768.91/x
  3. Step 3: Cross multiply
    74,065.99x = 111,098.98 × 40,768.91
  4. Step 4: Simplify right side
    74,065.99x = 4,529,384,316.71
  5. Step 5: Solve for x
    x = 4,529,384,316.71/74,065.99
  6. Step 6: Final answer
    x = 61,153.36

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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.