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Finding the Fourth Proportional to 69,041.57, 103,477.55 and 35,742.65

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Solution

The fourth proportional to 69,041.57, 103,477.55 and 35,742.65 is: 53,570.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,041.57 : 103,477.55 = 35,742.65 : x
  2. Step 2: Convert to fraction form
    69,041.57/103,477.55 = 35,742.65/x
  3. Step 3: Cross multiply
    69,041.57x = 103,477.55 × 35,742.65
  4. Step 4: Simplify right side
    69,041.57x = 3,698,561,156.41
  5. Step 5: Solve for x
    x = 3,698,561,156.41/69,041.57
  6. Step 6: Final answer
    x = 53,570.07

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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.