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Finding the Fourth Proportional to 112,503.61, 168,755.57 and 45,943.74

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Solution

The fourth proportional to 112,503.61, 168,755.57 and 45,943.74 is: 68,915.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,503.61 : 168,755.57 = 45,943.74 : x
  2. Step 2: Convert to fraction form
    112,503.61/168,755.57 = 45,943.74/x
  3. Step 3: Cross multiply
    112,503.61x = 168,755.57 × 45,943.74
  4. Step 4: Simplify right side
    112,503.61x = 7,753,261,398.52
  5. Step 5: Solve for x
    x = 7,753,261,398.52/112,503.61
  6. Step 6: Final answer
    x = 68,915.67

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1.5x scale

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.