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Finding the Fourth Proportional to 389,305.96, 583,957.98 and 93,817.96

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Solution

The fourth proportional to 389,305.96, 583,957.98 and 93,817.96 is: 140,726.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,305.96 : 583,957.98 = 93,817.96 : x
  2. Step 2: Convert to fraction form
    389,305.96/583,957.98 = 93,817.96/x
  3. Step 3: Cross multiply
    389,305.96x = 583,957.98 × 93,817.96
  4. Step 4: Simplify right side
    389,305.96x = 54,785,746,409.32
  5. Step 5: Solve for x
    x = 54,785,746,409.32/389,305.96
  6. Step 6: Final answer
    x = 140,726.71

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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.