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Finding the Fourth Proportional to 61,169.81, 91,606.55 and 31,104.95

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Solution

The fourth proportional to 61,169.81, 91,606.55 and 31,104.95 is: 46,582.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,169.81 : 91,606.55 = 31,104.95 : x
  2. Step 2: Convert to fraction form
    61,169.81/91,606.55 = 31,104.95/x
  3. Step 3: Cross multiply
    61,169.81x = 91,606.55 × 31,104.95
  4. Step 4: Simplify right side
    61,169.81x = 2,849,416,543.87
  5. Step 5: Solve for x
    x = 2,849,416,543.87/61,169.81
  6. Step 6: Final answer
    x = 46,582.08

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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.