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Finding the Fourth Proportional to 82,999.79, 114,403.13 and 58,808.87

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Solution

The fourth proportional to 82,999.79, 114,403.13 and 58,808.87 is: 81,059.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,999.79 : 114,403.13 = 58,808.87 : x
  2. Step 2: Convert to fraction form
    82,999.79/114,403.13 = 58,808.87/x
  3. Step 3: Cross multiply
    82,999.79x = 114,403.13 × 58,808.87
  4. Step 4: Simplify right side
    82,999.79x = 6,727,918,914.05
  5. Step 5: Solve for x
    x = 6,727,918,914.05/82,999.79
  6. Step 6: Final answer
    x = 81,059.47

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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.