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Finding the Fourth Proportional to 132,706, 183,134.28 and 73,090

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Solution

The fourth proportional to 132,706, 183,134.28 and 73,090 is: 100,864.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,706 : 183,134.28 = 73,090 : x
  2. Step 2: Convert to fraction form
    132,706/183,134.28 = 73,090/x
  3. Step 3: Cross multiply
    132,706x = 183,134.28 × 73,090
  4. Step 4: Simplify right side
    132,706x = 13,385,284,525.20
  5. Step 5: Solve for x
    x = 13,385,284,525.20/132,706
  6. Step 6: Final answer
    x = 100,864.20

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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.