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Finding the Fourth Proportional to 284,183.35, 392,173.05 and 156,858.98

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Solution

The fourth proportional to 284,183.35, 392,173.05 and 156,858.98 is: 216,465.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,183.35 : 392,173.05 = 156,858.98 : x
  2. Step 2: Convert to fraction form
    284,183.35/392,173.05 = 156,858.98/x
  3. Step 3: Cross multiply
    284,183.35x = 392,173.05 × 156,858.98
  4. Step 4: Simplify right side
    284,183.35x = 61,515,862,645.62
  5. Step 5: Solve for x
    x = 61,515,862,645.62/284,183.35
  6. Step 6: Final answer
    x = 216,465.40

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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.