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Finding the Fourth Proportional to 118,285.38, 163,227.59 and 64,559.97

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Solution

The fourth proportional to 118,285.38, 163,227.59 and 64,559.97 is: 89,089.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,285.38 : 163,227.59 = 64,559.97 : x
  2. Step 2: Convert to fraction form
    118,285.38/163,227.59 = 64,559.97/x
  3. Step 3: Cross multiply
    118,285.38x = 163,227.59 × 64,559.97
  4. Step 4: Simplify right side
    118,285.38x = 10,537,968,313.57
  5. Step 5: Solve for x
    x = 10,537,968,313.57/118,285.38
  6. Step 6: Final answer
    x = 89,089.36

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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.