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Finding the Fourth Proportional to 454,061.60, 681,238.20 and 201,244.40

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Solution

The fourth proportional to 454,061.60, 681,238.20 and 201,244.40 is: 301,931.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,061.60 : 681,238.20 = 201,244.40 : x
  2. Step 2: Convert to fraction form
    454,061.60/681,238.20 = 201,244.40/x
  3. Step 3: Cross multiply
    454,061.60x = 681,238.20 × 201,244.40
  4. Step 4: Simplify right side
    454,061.60x = 137,095,372,816.08
  5. Step 5: Solve for x
    x = 137,095,372,816.08/454,061.60
  6. Step 6: Final answer
    x = 301,931.22

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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.