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Finding the Fourth Proportional to 118,704.66, 163,814.49 and 73,381.52

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Solution

The fourth proportional to 118,704.66, 163,814.49 and 73,381.52 is: 101,267.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,704.66 : 163,814.49 = 73,381.52 : x
  2. Step 2: Convert to fraction form
    118,704.66/163,814.49 = 73,381.52/x
  3. Step 3: Cross multiply
    118,704.66x = 163,814.49 × 73,381.52
  4. Step 4: Simplify right side
    118,704.66x = 12,020,955,455.15
  5. Step 5: Solve for x
    x = 12,020,955,455.15/118,704.66
  6. Step 6: Final answer
    x = 101,267.76

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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.