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Finding the Fourth Proportional to 86,673.72, 119,494.08 and 68,827.80

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Solution

The fourth proportional to 86,673.72, 119,494.08 and 68,827.80 is: 94,890.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,673.72 : 119,494.08 = 68,827.80 : x
  2. Step 2: Convert to fraction form
    86,673.72/119,494.08 = 68,827.80/x
  3. Step 3: Cross multiply
    86,673.72x = 119,494.08 × 68,827.80
  4. Step 4: Simplify right side
    86,673.72x = 8,224,514,639.42
  5. Step 5: Solve for x
    x = 8,224,514,639.42/86,673.72
  6. Step 6: Final answer
    x = 94,890.52

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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.