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Finding the Fourth Proportional to 86,800.32, 130,066.53 and 58,609.89

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Solution

The fourth proportional to 86,800.32, 130,066.53 and 58,609.89 is: 87,824.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,800.32 : 130,066.53 = 58,609.89 : x
  2. Step 2: Convert to fraction form
    86,800.32/130,066.53 = 58,609.89/x
  3. Step 3: Cross multiply
    86,800.32x = 130,066.53 × 58,609.89
  4. Step 4: Simplify right side
    86,800.32x = 7,623,185,015.98
  5. Step 5: Solve for x
    x = 7,623,185,015.98/86,800.32
  6. Step 6: Final answer
    x = 87,824.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.