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Finding the Fourth Proportional to 215,083.91, 296,852.95 and 124,489.83

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Solution

The fourth proportional to 215,083.91, 296,852.95 and 124,489.83 is: 171,817.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,083.91 : 296,852.95 = 124,489.83 : x
  2. Step 2: Convert to fraction form
    215,083.91/296,852.95 = 124,489.83/x
  3. Step 3: Cross multiply
    215,083.91x = 296,852.95 × 124,489.83
  4. Step 4: Simplify right side
    215,083.91x = 36,955,172,879.51
  5. Step 5: Solve for x
    x = 36,955,172,879.51/215,083.91
  6. Step 6: Final answer
    x = 171,817.47

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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.