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Finding the Fourth Proportional to 189,533.78, 284,205.57 and 63,129.57

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Solution

The fourth proportional to 189,533.78, 284,205.57 and 63,129.57 is: 94,662.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,533.78 : 284,205.57 = 63,129.57 : x
  2. Step 2: Convert to fraction form
    189,533.78/284,205.57 = 63,129.57/x
  3. Step 3: Cross multiply
    189,533.78x = 284,205.57 × 63,129.57
  4. Step 4: Simplify right side
    189,533.78x = 17,941,775,425.70
  5. Step 5: Solve for x
    x = 17,941,775,425.70/189,533.78
  6. Step 6: Final answer
    x = 94,662.68

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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.