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Finding the Fourth Proportional to 220,005.70, 303,612.69 and 124,512.46

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Solution

The fourth proportional to 220,005.70, 303,612.69 and 124,512.46 is: 171,829.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,005.70 : 303,612.69 = 124,512.46 : x
  2. Step 2: Convert to fraction form
    220,005.70/303,612.69 = 124,512.46/x
  3. Step 3: Cross multiply
    220,005.70x = 303,612.69 × 124,512.46
  4. Step 4: Simplify right side
    220,005.70x = 37,803,562,919.12
  5. Step 5: Solve for x
    x = 37,803,562,919.12/220,005.70
  6. Step 6: Final answer
    x = 171,829.92

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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.