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Finding the Fourth Proportional to 118,033.74, 162,888.39 and 64,318.74

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Solution

The fourth proportional to 118,033.74, 162,888.39 and 64,318.74 is: 88,760.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,033.74 : 162,888.39 = 64,318.74 : x
  2. Step 2: Convert to fraction form
    118,033.74/162,888.39 = 64,318.74/x
  3. Step 3: Cross multiply
    118,033.74x = 162,888.39 × 64,318.74
  4. Step 4: Simplify right side
    118,033.74x = 10,476,776,005.43
  5. Step 5: Solve for x
    x = 10,476,776,005.43/118,033.74
  6. Step 6: Final answer
    x = 88,760.86

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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.