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Finding the Fourth Proportional to 92,834.81, 139,271.50 and 42,209.71

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Solution

The fourth proportional to 92,834.81, 139,271.50 and 42,209.71 is: 63,323.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,834.81 : 139,271.50 = 42,209.71 : x
  2. Step 2: Convert to fraction form
    92,834.81/139,271.50 = 42,209.71/x
  3. Step 3: Cross multiply
    92,834.81x = 139,271.50 × 42,209.71
  4. Step 4: Simplify right side
    92,834.81x = 5,878,609,330.85
  5. Step 5: Solve for x
    x = 5,878,609,330.85/92,834.81
  6. Step 6: Final answer
    x = 63,323.33

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.