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Finding the Fourth Proportional to 86,801.91, 119,795.57 and 52,812.81

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Solution

The fourth proportional to 86,801.91, 119,795.57 and 52,812.81 is: 72,887.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,801.91 : 119,795.57 = 52,812.81 : x
  2. Step 2: Convert to fraction form
    86,801.91/119,795.57 = 52,812.81/x
  3. Step 3: Cross multiply
    86,801.91x = 119,795.57 × 52,812.81
  4. Step 4: Simplify right side
    86,801.91x = 6,326,740,677.25
  5. Step 5: Solve for x
    x = 6,326,740,677.25/86,801.91
  6. Step 6: Final answer
    x = 72,887.11

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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.