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Finding the Fourth Proportional to 92,878.83, 139,320.87 and 22,758.06

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Solution

The fourth proportional to 92,878.83, 139,320.87 and 22,758.06 is: 34,137.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,878.83 : 139,320.87 = 22,758.06 : x
  2. Step 2: Convert to fraction form
    92,878.83/139,320.87 = 22,758.06/x
  3. Step 3: Cross multiply
    92,878.83x = 139,320.87 × 22,758.06
  4. Step 4: Simplify right side
    92,878.83x = 3,170,672,718.71
  5. Step 5: Solve for x
    x = 3,170,672,718.71/92,878.83
  6. Step 6: Final answer
    x = 34,137.73

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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.