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Finding the Fourth Proportional to 86,800.88, 119,788.44 and 49,072.88

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Solution

The fourth proportional to 86,800.88, 119,788.44 and 49,072.88 is: 67,722.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,800.88 : 119,788.44 = 49,072.88 : x
  2. Step 2: Convert to fraction form
    86,800.88/119,788.44 = 49,072.88/x
  3. Step 3: Cross multiply
    86,800.88x = 119,788.44 × 49,072.88
  4. Step 4: Simplify right side
    86,800.88x = 5,878,363,741.51
  5. Step 5: Solve for x
    x = 5,878,363,741.51/86,800.88
  6. Step 6: Final answer
    x = 67,722.40

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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.