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Finding the Fourth Proportional to 127,442.99, 191,195.93 and 63,431.63

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Solution

The fourth proportional to 127,442.99, 191,195.93 and 63,431.63 is: 95,163.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,442.99 : 191,195.93 = 63,431.63 : x
  2. Step 2: Convert to fraction form
    127,442.99/191,195.93 = 63,431.63/x
  3. Step 3: Cross multiply
    127,442.99x = 191,195.93 × 63,431.63
  4. Step 4: Simplify right side
    127,442.99x = 12,127,869,489.27
  5. Step 5: Solve for x
    x = 12,127,869,489.27/127,442.99
  6. Step 6: Final answer
    x = 95,163.10

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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.