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Finding the Fourth Proportional to 86,799.91, 119,792.78 and 52,810.84

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Solution

The fourth proportional to 86,799.91, 119,792.78 and 52,810.84 is: 72,884.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,799.91 : 119,792.78 = 52,810.84 : x
  2. Step 2: Convert to fraction form
    86,799.91/119,792.78 = 52,810.84/x
  3. Step 3: Cross multiply
    86,799.91x = 119,792.78 × 52,810.84
  4. Step 4: Simplify right side
    86,799.91x = 6,326,357,337.74
  5. Step 5: Solve for x
    x = 6,326,357,337.74/86,799.91
  6. Step 6: Final answer
    x = 72,884.38

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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.