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Finding the Fourth Proportional to 215,595.52, 323,393.88 and 75,354.16

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Solution

The fourth proportional to 215,595.52, 323,393.88 and 75,354.16 is: 113,031.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,595.52 : 323,393.88 = 75,354.16 : x
  2. Step 2: Convert to fraction form
    215,595.52/323,393.88 = 75,354.16/x
  3. Step 3: Cross multiply
    215,595.52x = 323,393.88 × 75,354.16
  4. Step 4: Simplify right side
    215,595.52x = 24,369,074,176.54
  5. Step 5: Solve for x
    x = 24,369,074,176.54/215,595.52
  6. Step 6: Final answer
    x = 113,031.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.