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Finding the Fourth Proportional to 104,581, 144,322.71 and 56,834.35

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Solution

The fourth proportional to 104,581, 144,322.71 and 56,834.35 is: 78,431.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,581 : 144,322.71 = 56,834.35 : x
  2. Step 2: Convert to fraction form
    104,581/144,322.71 = 56,834.35/x
  3. Step 3: Cross multiply
    104,581x = 144,322.71 × 56,834.35
  4. Step 4: Simplify right side
    104,581x = 8,202,487,413.09
  5. Step 5: Solve for x
    x = 8,202,487,413.09/104,581
  6. Step 6: Final answer
    x = 78,431.91

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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.