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Finding the Fourth Proportional to 92,907.26, 139,980.71 and 84,032.82

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Solution

The fourth proportional to 92,907.26, 139,980.71 and 84,032.82 is: 126,609.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,907.26 : 139,980.71 = 84,032.82 : x
  2. Step 2: Convert to fraction form
    92,907.26/139,980.71 = 84,032.82/x
  3. Step 3: Cross multiply
    92,907.26x = 139,980.71 × 84,032.82
  4. Step 4: Simplify right side
    92,907.26x = 11,762,973,806.90
  5. Step 5: Solve for x
    x = 11,762,973,806.90/92,907.26
  6. Step 6: Final answer
    x = 126,609.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.