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Finding the Fourth Proportional to 389,801.81, 584,702.73 and 94,313.81

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Solution

The fourth proportional to 389,801.81, 584,702.73 and 94,313.81 is: 141,470.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,801.81 : 584,702.73 = 94,313.81 : x
  2. Step 2: Convert to fraction form
    389,801.81/584,702.73 = 94,313.81/x
  3. Step 3: Cross multiply
    389,801.81x = 584,702.73 × 94,313.81
  4. Step 4: Simplify right side
    389,801.81x = 55,145,543,645.46
  5. Step 5: Solve for x
    x = 55,145,543,645.46/389,801.81
  6. Step 6: Final answer
    x = 141,470.72

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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.