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Finding the Fourth Proportional to 58,355.97, 87,402.67 and 40,903.71

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Solution

The fourth proportional to 58,355.97, 87,402.67 and 40,903.71 is: 61,263.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,355.97 : 87,402.67 = 40,903.71 : x
  2. Step 2: Convert to fraction form
    58,355.97/87,402.67 = 40,903.71/x
  3. Step 3: Cross multiply
    58,355.97x = 87,402.67 × 40,903.71
  4. Step 4: Simplify right side
    58,355.97x = 3,575,093,364.65
  5. Step 5: Solve for x
    x = 3,575,093,364.65/58,355.97
  6. Step 6: Final answer
    x = 61,263.54

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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.