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Finding the Fourth Proportional to 79,658.83, 109,925.67 and 43,851.16

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Solution

The fourth proportional to 79,658.83, 109,925.67 and 43,851.16 is: 60,512.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,658.83 : 109,925.67 = 43,851.16 : x
  2. Step 2: Convert to fraction form
    79,658.83/109,925.67 = 43,851.16/x
  3. Step 3: Cross multiply
    79,658.83x = 109,925.67 × 43,851.16
  4. Step 4: Simplify right side
    79,658.83x = 4,820,368,143.28
  5. Step 5: Solve for x
    x = 4,820,368,143.28/79,658.83
  6. Step 6: Final answer
    x = 60,512.67

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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.