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Finding the Fourth Proportional to 265,220.70, 397,831.05 and 123,065.70

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Solution

The fourth proportional to 265,220.70, 397,831.05 and 123,065.70 is: 184,598.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,220.70 : 397,831.05 = 123,065.70 : x
  2. Step 2: Convert to fraction form
    265,220.70/397,831.05 = 123,065.70/x
  3. Step 3: Cross multiply
    265,220.70x = 397,831.05 × 123,065.70
  4. Step 4: Simplify right side
    265,220.70x = 48,959,356,649.99
  5. Step 5: Solve for x
    x = 48,959,356,649.99/265,220.70
  6. Step 6: Final answer
    x = 184,598.55

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Similar ratio
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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.