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Finding the Fourth Proportional to 86,755.96, 119,726.10 and 47,994.32

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Solution

The fourth proportional to 86,755.96, 119,726.10 and 47,994.32 is: 66,233.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,755.96 : 119,726.10 = 47,994.32 : x
  2. Step 2: Convert to fraction form
    86,755.96/119,726.10 = 47,994.32/x
  3. Step 3: Cross multiply
    86,755.96x = 119,726.10 × 47,994.32
  4. Step 4: Simplify right side
    86,755.96x = 5,746,173,055.07
  5. Step 5: Solve for x
    x = 5,746,173,055.07/86,755.96
  6. Step 6: Final answer
    x = 66,233.75

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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.