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Finding the Fourth Proportional to 169,341.50, 253,637.51 and 69,197.87

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Solution

The fourth proportional to 169,341.50, 253,637.51 and 69,197.87 is: 103,643.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,341.50 : 253,637.51 = 69,197.87 : x
  2. Step 2: Convert to fraction form
    169,341.50/253,637.51 = 69,197.87/x
  3. Step 3: Cross multiply
    169,341.50x = 253,637.51 × 69,197.87
  4. Step 4: Simplify right side
    169,341.50x = 17,551,175,732.21
  5. Step 5: Solve for x
    x = 17,551,175,732.21/169,341.50
  6. Step 6: Final answer
    x = 103,643.68

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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.