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Finding the Fourth Proportional to 92,437.87, 138,291.98 and 70,013.14

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Solution

The fourth proportional to 92,437.87, 138,291.98 and 70,013.14 is: 104,743.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,437.87 : 138,291.98 = 70,013.14 : x
  2. Step 2: Convert to fraction form
    92,437.87/138,291.98 = 70,013.14/x
  3. Step 3: Cross multiply
    92,437.87x = 138,291.98 × 70,013.14
  4. Step 4: Simplify right side
    92,437.87x = 9,682,255,752.28
  5. Step 5: Solve for x
    x = 9,682,255,752.28/92,437.87
  6. Step 6: Final answer
    x = 104,743.39

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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.