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Finding the Fourth Proportional to 284,183.49, 392,173.25 and 156,859.11

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Solution

The fourth proportional to 284,183.49, 392,173.25 and 156,859.11 is: 216,465.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,183.49 : 392,173.25 = 156,859.11 : x
  2. Step 2: Convert to fraction form
    284,183.49/392,173.25 = 156,859.11/x
  3. Step 3: Cross multiply
    284,183.49x = 392,173.25 × 156,859.11
  4. Step 4: Simplify right side
    284,183.49x = 61,515,947,647.16
  5. Step 5: Solve for x
    x = 61,515,947,647.16/284,183.49
  6. Step 6: Final answer
    x = 216,465.60

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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.