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Finding the Fourth Proportional to 86,159.82, 118,866.74 and 63,553.12

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Solution

The fourth proportional to 86,159.82, 118,866.74 and 63,553.12 is: 87,678.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,159.82 : 118,866.74 = 63,553.12 : x
  2. Step 2: Convert to fraction form
    86,159.82/118,866.74 = 63,553.12/x
  3. Step 3: Cross multiply
    86,159.82x = 118,866.74 × 63,553.12
  4. Step 4: Simplify right side
    86,159.82x = 7,554,352,191.23
  5. Step 5: Solve for x
    x = 7,554,352,191.23/86,159.82
  6. Step 6: Final answer
    x = 87,678.37

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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.