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Finding the Fourth Proportional to 220,339.88, 304,162.05 and 148,816.77

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Solution

The fourth proportional to 220,339.88, 304,162.05 and 148,816.77 is: 205,429.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,339.88 : 304,162.05 = 148,816.77 : x
  2. Step 2: Convert to fraction form
    220,339.88/304,162.05 = 148,816.77/x
  3. Step 3: Cross multiply
    220,339.88x = 304,162.05 × 148,816.77
  4. Step 4: Simplify right side
    220,339.88x = 45,264,413,837.58
  5. Step 5: Solve for x
    x = 45,264,413,837.58/220,339.88
  6. Step 6: Final answer
    x = 205,429.97

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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.