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Finding the Fourth Proportional to 60,613.40, 90,934.38 and 19,060.40

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Solution

The fourth proportional to 60,613.40, 90,934.38 and 19,060.40 is: 28,595.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,613.40 : 90,934.38 = 19,060.40 : x
  2. Step 2: Convert to fraction form
    60,613.40/90,934.38 = 19,060.40/x
  3. Step 3: Cross multiply
    60,613.40x = 90,934.38 × 19,060.40
  4. Step 4: Simplify right side
    60,613.40x = 1,733,245,656.55
  5. Step 5: Solve for x
    x = 1,733,245,656.55/60,613.40
  6. Step 6: Final answer
    x = 28,595.09

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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.