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Finding the Fourth Proportional to 269,887.51, 404,831.78 and 70,207.58

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Solution

The fourth proportional to 269,887.51, 404,831.78 and 70,207.58 is: 105,311.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,887.51 : 404,831.78 = 70,207.58 : x
  2. Step 2: Convert to fraction form
    269,887.51/404,831.78 = 70,207.58/x
  3. Step 3: Cross multiply
    269,887.51x = 404,831.78 × 70,207.58
  4. Step 4: Simplify right side
    269,887.51x = 28,422,257,205.70
  5. Step 5: Solve for x
    x = 28,422,257,205.70/269,887.51
  6. Step 6: Final answer
    x = 105,311.50

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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.