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Finding the Fourth Proportional to 313,503.48, 432,661.50 and 177,561.18

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Solution

The fourth proportional to 313,503.48, 432,661.50 and 177,561.18 is: 245,049.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,503.48 : 432,661.50 = 177,561.18 : x
  2. Step 2: Convert to fraction form
    313,503.48/432,661.50 = 177,561.18/x
  3. Step 3: Cross multiply
    313,503.48x = 432,661.50 × 177,561.18
  4. Step 4: Simplify right side
    313,503.48x = 76,823,886,480.57
  5. Step 5: Solve for x
    x = 76,823,886,480.57/313,503.48
  6. Step 6: Final answer
    x = 245,049.55

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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.