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Finding the Fourth Proportional to 256,035.48, 384,053.16 and 69,046.92

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Solution

The fourth proportional to 256,035.48, 384,053.16 and 69,046.92 is: 103,570.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,035.48 : 384,053.16 = 69,046.92 : x
  2. Step 2: Convert to fraction form
    256,035.48/384,053.16 = 69,046.92/x
  3. Step 3: Cross multiply
    256,035.48x = 384,053.16 × 69,046.92
  4. Step 4: Simplify right side
    256,035.48x = 26,517,687,814.27
  5. Step 5: Solve for x
    x = 26,517,687,814.27/256,035.48
  6. Step 6: Final answer
    x = 103,570.36

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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.