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Finding the Fourth Proportional to 118,537.48, 177,769.14 and 39,633.40

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Solution

The fourth proportional to 118,537.48, 177,769.14 and 39,633.40 is: 59,437.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,537.48 : 177,769.14 = 39,633.40 : x
  2. Step 2: Convert to fraction form
    118,537.48/177,769.14 = 39,633.40/x
  3. Step 3: Cross multiply
    118,537.48x = 177,769.14 × 39,633.40
  4. Step 4: Simplify right side
    118,537.48x = 7,045,595,433.28
  5. Step 5: Solve for x
    x = 7,045,595,433.28/118,537.48
  6. Step 6: Final answer
    x = 59,437.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.