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Finding the Fourth Proportional to 155,886.86, 215,072.88 and 95,394.44

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Solution

The fourth proportional to 155,886.86, 215,072.88 and 95,394.44 is: 131,613.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,886.86 : 215,072.88 = 95,394.44 : x
  2. Step 2: Convert to fraction form
    155,886.86/215,072.88 = 95,394.44/x
  3. Step 3: Cross multiply
    155,886.86x = 215,072.88 × 95,394.44
  4. Step 4: Simplify right side
    155,886.86x = 20,516,756,946.79
  5. Step 5: Solve for x
    x = 20,516,756,946.79/155,886.86
  6. Step 6: Final answer
    x = 131,613.13

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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.