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Finding the Fourth Proportional to 220,875.80, 331,356.90 and 94,515.80

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Solution

The fourth proportional to 220,875.80, 331,356.90 and 94,515.80 is: 141,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,875.80 : 331,356.90 = 94,515.80 : x
  2. Step 2: Convert to fraction form
    220,875.80/331,356.90 = 94,515.80/x
  3. Step 3: Cross multiply
    220,875.80x = 331,356.90 × 94,515.80
  4. Step 4: Simplify right side
    220,875.80x = 31,318,462,489.02
  5. Step 5: Solve for x
    x = 31,318,462,489.02/220,875.80
  6. Step 6: Final answer
    x = 141,792.19

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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.