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Finding the Fourth Proportional to 118,412.52, 177,616.28 and 38,450.40

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Solution

The fourth proportional to 118,412.52, 177,616.28 and 38,450.40 is: 57,674.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,412.52 : 177,616.28 = 38,450.40 : x
  2. Step 2: Convert to fraction form
    118,412.52/177,616.28 = 38,450.40/x
  3. Step 3: Cross multiply
    118,412.52x = 177,616.28 × 38,450.40
  4. Step 4: Simplify right side
    118,412.52x = 6,829,416,820.26
  5. Step 5: Solve for x
    x = 6,829,416,820.26/118,412.52
  6. Step 6: Final answer
    x = 57,674.79

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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.