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Finding the Fourth Proportional to 220,318.31, 304,039.58 and 124,831.46

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Solution

The fourth proportional to 220,318.31, 304,039.58 and 124,831.46 is: 172,267.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,318.31 : 304,039.58 = 124,831.46 : x
  2. Step 2: Convert to fraction form
    220,318.31/304,039.58 = 124,831.46/x
  3. Step 3: Cross multiply
    220,318.31x = 304,039.58 × 124,831.46
  4. Step 4: Simplify right side
    220,318.31x = 37,953,704,805.13
  5. Step 5: Solve for x
    x = 37,953,704,805.13/220,318.31
  6. Step 6: Final answer
    x = 172,267.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.