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Finding the Fourth Proportional to 127,065.68, 190,616.10 and 42,849.92

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Solution

The fourth proportional to 127,065.68, 190,616.10 and 42,849.92 is: 64,280.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,065.68 : 190,616.10 = 42,849.92 : x
  2. Step 2: Convert to fraction form
    127,065.68/190,616.10 = 42,849.92/x
  3. Step 3: Cross multiply
    127,065.68x = 190,616.10 × 42,849.92
  4. Step 4: Simplify right side
    127,065.68x = 8,167,883,682.63
  5. Step 5: Solve for x
    x = 8,167,883,682.63/127,065.68
  6. Step 6: Final answer
    x = 64,280.80

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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.