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Finding the Fourth Proportional to 117,472.48, 162,038.29 and 69,692

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Solution

The fourth proportional to 117,472.48, 162,038.29 and 69,692 is: 96,131.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,472.48 : 162,038.29 = 69,692 : x
  2. Step 2: Convert to fraction form
    117,472.48/162,038.29 = 69,692/x
  3. Step 3: Cross multiply
    117,472.48x = 162,038.29 × 69,692
  4. Step 4: Simplify right side
    117,472.48x = 11,292,772,506.68
  5. Step 5: Solve for x
    x = 11,292,772,506.68/117,472.48
  6. Step 6: Final answer
    x = 96,131.22

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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.