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Finding the Fourth Proportional to 92,580.39, 138,870.99 and 28,537.74

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Solution

The fourth proportional to 92,580.39, 138,870.99 and 28,537.74 is: 42,806.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,580.39 : 138,870.99 = 28,537.74 : x
  2. Step 2: Convert to fraction form
    92,580.39/138,870.99 = 28,537.74/x
  3. Step 3: Cross multiply
    92,580.39x = 138,870.99 × 28,537.74
  4. Step 4: Simplify right side
    92,580.39x = 3,963,064,206.16
  5. Step 5: Solve for x
    x = 3,963,064,206.16/92,580.39
  6. Step 6: Final answer
    x = 42,806.73

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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.