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Finding the Fourth Proportional to 132,364.56, 182,663.04 and 72,748.56

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Solution

The fourth proportional to 132,364.56, 182,663.04 and 72,748.56 is: 100,392.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,364.56 : 182,663.04 = 72,748.56 : x
  2. Step 2: Convert to fraction form
    132,364.56/182,663.04 = 72,748.56/x
  3. Step 3: Cross multiply
    132,364.56x = 182,663.04 × 72,748.56
  4. Step 4: Simplify right side
    132,364.56x = 13,288,473,125.22
  5. Step 5: Solve for x
    x = 13,288,473,125.22/132,364.56
  6. Step 6: Final answer
    x = 100,392.98

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1.5x scale

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.