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Finding the Fourth Proportional to 86,230.69, 118,896.58 and 59,019.90

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Solution

The fourth proportional to 86,230.69, 118,896.58 and 59,019.90 is: 81,377.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,230.69 : 118,896.58 = 59,019.90 : x
  2. Step 2: Convert to fraction form
    86,230.69/118,896.58 = 59,019.90/x
  3. Step 3: Cross multiply
    86,230.69x = 118,896.58 × 59,019.90
  4. Step 4: Simplify right side
    86,230.69x = 7,017,264,261.94
  5. Step 5: Solve for x
    x = 7,017,264,261.94/86,230.69
  6. Step 6: Final answer
    x = 81,377.80

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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.