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Finding the Fourth Proportional to 227,569.72, 341,409.41 and 85,416.42

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Solution

The fourth proportional to 227,569.72, 341,409.41 and 85,416.42 is: 128,145.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,569.72 : 341,409.41 = 85,416.42 : x
  2. Step 2: Convert to fraction form
    227,569.72/341,409.41 = 85,416.42/x
  3. Step 3: Cross multiply
    227,569.72x = 341,409.41 × 85,416.42
  4. Step 4: Simplify right side
    227,569.72x = 29,161,971,210.49
  5. Step 5: Solve for x
    x = 29,161,971,210.49/227,569.72
  6. Step 6: Final answer
    x = 128,145.22

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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.