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Finding the Fourth Proportional to 92,750.32, 139,031.57 and 36,630

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Solution

The fourth proportional to 92,750.32, 139,031.57 and 36,630 is: 54,907.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,750.32 : 139,031.57 = 36,630 : x
  2. Step 2: Convert to fraction form
    92,750.32/139,031.57 = 36,630/x
  3. Step 3: Cross multiply
    92,750.32x = 139,031.57 × 36,630
  4. Step 4: Simplify right side
    92,750.32x = 5,092,726,225.95
  5. Step 5: Solve for x
    x = 5,092,726,225.95/92,750.32
  6. Step 6: Final answer
    x = 54,907.91

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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.