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Finding the Fourth Proportional to 189,549.78, 284,229.60 and 63,145.59

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Solution

The fourth proportional to 189,549.78, 284,229.60 and 63,145.59 is: 94,686.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,549.78 : 284,229.60 = 63,145.59 : x
  2. Step 2: Convert to fraction form
    189,549.78/284,229.60 = 63,145.59/x
  3. Step 3: Cross multiply
    189,549.78x = 284,229.60 × 63,145.59
  4. Step 4: Simplify right side
    189,549.78x = 17,947,844,050.59
  5. Step 5: Solve for x
    x = 17,947,844,050.59/189,549.78
  6. Step 6: Final answer
    x = 94,686.70

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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.