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Finding the Fourth Proportional to 78,718.64, 108,627.75 and 44,722.67

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Solution

The fourth proportional to 78,718.64, 108,627.75 and 44,722.67 is: 61,715.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,718.64 : 108,627.75 = 44,722.67 : x
  2. Step 2: Convert to fraction form
    78,718.64/108,627.75 = 44,722.67/x
  3. Step 3: Cross multiply
    78,718.64x = 108,627.75 × 44,722.67
  4. Step 4: Simplify right side
    78,718.64x = 4,858,122,472.95
  5. Step 5: Solve for x
    x = 4,858,122,472.95/78,718.64
  6. Step 6: Final answer
    x = 61,715.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.