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Finding the Fourth Proportional to 73,612.32, 101,676.48 and 72,506.40

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Solution

The fourth proportional to 73,612.32, 101,676.48 and 72,506.40 is: 100,148.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,612.32 : 101,676.48 = 72,506.40 : x
  2. Step 2: Convert to fraction form
    73,612.32/101,676.48 = 72,506.40/x
  3. Step 3: Cross multiply
    73,612.32x = 101,676.48 × 72,506.40
  4. Step 4: Simplify right side
    73,612.32x = 7,372,195,529.47
  5. Step 5: Solve for x
    x = 7,372,195,529.47/73,612.32
  6. Step 6: Final answer
    x = 100,148.94

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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.