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Finding the Fourth Proportional to 365,570.42, 548,407.87 and 112,871.68

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Solution

The fourth proportional to 365,570.42, 548,407.87 and 112,871.68 is: 169,323.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,570.42 : 548,407.87 = 112,871.68 : x
  2. Step 2: Convert to fraction form
    365,570.42/548,407.87 = 112,871.68/x
  3. Step 3: Cross multiply
    365,570.42x = 548,407.87 × 112,871.68
  4. Step 4: Simplify right side
    365,570.42x = 61,899,715,958.92
  5. Step 5: Solve for x
    x = 61,899,715,958.92/365,570.42
  6. Step 6: Final answer
    x = 169,323.65

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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.