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Finding the Fourth Proportional to 132,574.78, 182,953.23 and 72,958.78

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Solution

The fourth proportional to 132,574.78, 182,953.23 and 72,958.78 is: 100,683.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,574.78 : 182,953.23 = 72,958.78 : x
  2. Step 2: Convert to fraction form
    132,574.78/182,953.23 = 72,958.78/x
  3. Step 3: Cross multiply
    132,574.78x = 182,953.23 × 72,958.78
  4. Step 4: Simplify right side
    132,574.78x = 13,348,044,595.35
  5. Step 5: Solve for x
    x = 13,348,044,595.35/132,574.78
  6. Step 6: Final answer
    x = 100,683.13

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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.