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Finding the Fourth Proportional to 189,686.61, 284,576.63 and 63,340.45

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Solution

The fourth proportional to 189,686.61, 284,576.63 and 63,340.45 is: 95,026.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,686.61 : 284,576.63 = 63,340.45 : x
  2. Step 2: Convert to fraction form
    189,686.61/284,576.63 = 63,340.45/x
  3. Step 3: Cross multiply
    189,686.61x = 284,576.63 × 63,340.45
  4. Step 4: Simplify right side
    189,686.61x = 18,025,210,775.54
  5. Step 5: Solve for x
    x = 18,025,210,775.54/189,686.61
  6. Step 6: Final answer
    x = 95,026.27

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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.