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Finding the Fourth Proportional to 86,779.98, 119,753.10 and 49,055.04

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Solution

The fourth proportional to 86,779.98, 119,753.10 and 49,055.04 is: 67,694.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,779.98 : 119,753.10 = 49,055.04 : x
  2. Step 2: Convert to fraction form
    86,779.98/119,753.10 = 49,055.04/x
  3. Step 3: Cross multiply
    86,779.98x = 119,753.10 × 49,055.04
  4. Step 4: Simplify right side
    86,779.98x = 5,874,493,110.62
  5. Step 5: Solve for x
    x = 5,874,493,110.62/86,779.98
  6. Step 6: Final answer
    x = 67,694.11

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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.