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Finding the Fourth Proportional to 86,476.48, 119,328.80 and 63,827.84

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Solution

The fourth proportional to 86,476.48, 119,328.80 and 63,827.84 is: 88,075.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,476.48 : 119,328.80 = 63,827.84 : x
  2. Step 2: Convert to fraction form
    86,476.48/119,328.80 = 63,827.84/x
  3. Step 3: Cross multiply
    86,476.48x = 119,328.80 × 63,827.84
  4. Step 4: Simplify right side
    86,476.48x = 7,616,499,553.79
  5. Step 5: Solve for x
    x = 7,616,499,553.79/86,476.48
  6. Step 6: Final answer
    x = 88,075.97

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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.