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Finding the Fourth Proportional to 208,069.94, 287,430.46 and 165,574.10

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Solution

The fourth proportional to 208,069.94, 287,430.46 and 165,574.10 is: 228,726.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,069.94 : 287,430.46 = 165,574.10 : x
  2. Step 2: Convert to fraction form
    208,069.94/287,430.46 = 165,574.10/x
  3. Step 3: Cross multiply
    208,069.94x = 287,430.46 × 165,574.10
  4. Step 4: Simplify right side
    208,069.94x = 47,591,039,727.09
  5. Step 5: Solve for x
    x = 47,591,039,727.09/208,069.94
  6. Step 6: Final answer
    x = 228,726.17

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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.