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Finding the Fourth Proportional to 157,286.80, 220,823.60 and 157,286.80

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Solution

The fourth proportional to 157,286.80, 220,823.60 and 157,286.80 is: 220,823.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,286.80 : 220,823.60 = 157,286.80 : x
  2. Step 2: Convert to fraction form
    157,286.80/220,823.60 = 157,286.80/x
  3. Step 3: Cross multiply
    157,286.80x = 220,823.60 × 157,286.80
  4. Step 4: Simplify right side
    157,286.80x = 34,732,637,408.48
  5. Step 5: Solve for x
    x = 34,732,637,408.48/157,286.80
  6. Step 6: Final answer
    x = 220,823.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.