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Finding the Fourth Proportional to 92,188.68, 138,392.37 and 77,579.52

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Solution

The fourth proportional to 92,188.68, 138,392.37 and 77,579.52 is: 116,461.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,188.68 : 138,392.37 = 77,579.52 : x
  2. Step 2: Convert to fraction form
    92,188.68/138,392.37 = 77,579.52/x
  3. Step 3: Cross multiply
    92,188.68x = 138,392.37 × 77,579.52
  4. Step 4: Simplify right side
    92,188.68x = 10,736,413,636.26
  5. Step 5: Solve for x
    x = 10,736,413,636.26/92,188.68
  6. Step 6: Final answer
    x = 116,461.30

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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.