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Finding the Fourth Proportional to 86,693.96, 119,604.70 and 64,087.23

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Solution

The fourth proportional to 86,693.96, 119,604.70 and 64,087.23 is: 88,416.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,693.96 : 119,604.70 = 64,087.23 : x
  2. Step 2: Convert to fraction form
    86,693.96/119,604.70 = 64,087.23/x
  3. Step 3: Cross multiply
    86,693.96x = 119,604.70 × 64,087.23
  4. Step 4: Simplify right side
    86,693.96x = 7,665,134,446.61
  5. Step 5: Solve for x
    x = 7,665,134,446.61/86,693.96
  6. Step 6: Final answer
    x = 88,416.01

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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.