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Finding the Fourth Proportional to 176,288.01, 243,252.95 and 103,694.19

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Solution

The fourth proportional to 176,288.01, 243,252.95 and 103,694.19 is: 143,083.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,288.01 : 243,252.95 = 103,694.19 : x
  2. Step 2: Convert to fraction form
    176,288.01/243,252.95 = 103,694.19/x
  3. Step 3: Cross multiply
    176,288.01x = 243,252.95 × 103,694.19
  4. Step 4: Simplify right side
    176,288.01x = 25,223,917,615.36
  5. Step 5: Solve for x
    x = 25,223,917,615.36/176,288.01
  6. Step 6: Final answer
    x = 143,083.57

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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.