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Finding the Fourth Proportional to 86,765.91, 130,000.15 and 58,249.45

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Solution

The fourth proportional to 86,765.91, 130,000.15 and 58,249.45 is: 87,274.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,765.91 : 130,000.15 = 58,249.45 : x
  2. Step 2: Convert to fraction form
    86,765.91/130,000.15 = 58,249.45/x
  3. Step 3: Cross multiply
    86,765.91x = 130,000.15 × 58,249.45
  4. Step 4: Simplify right side
    86,765.91x = 7,572,437,237.42
  5. Step 5: Solve for x
    x = 7,572,437,237.42/86,765.91
  6. Step 6: Final answer
    x = 87,274.34

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1.5x scale

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.