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Finding the Fourth Proportional to 86,797.88, 119,779.48 and 49,072.14

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Solution

The fourth proportional to 86,797.88, 119,779.48 and 49,072.14 is: 67,718.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,797.88 : 119,779.48 = 49,072.14 : x
  2. Step 2: Convert to fraction form
    86,797.88/119,779.48 = 49,072.14/x
  3. Step 3: Cross multiply
    86,797.88x = 119,779.48 × 49,072.14
  4. Step 4: Simplify right side
    86,797.88x = 5,877,835,411.69
  5. Step 5: Solve for x
    x = 5,877,835,411.69/86,797.88
  6. Step 6: Final answer
    x = 67,718.65

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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.