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Finding the Fourth Proportional to 86,457.32, 119,233.48 and 73,756.32

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Solution

The fourth proportional to 86,457.32, 119,233.48 and 73,756.32 is: 101,717.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,457.32 : 119,233.48 = 73,756.32 : x
  2. Step 2: Convert to fraction form
    86,457.32/119,233.48 = 73,756.32/x
  3. Step 3: Cross multiply
    86,457.32x = 119,233.48 × 73,756.32
  4. Step 4: Simplify right side
    86,457.32x = 8,794,222,705.59
  5. Step 5: Solve for x
    x = 8,794,222,705.59/86,457.32
  6. Step 6: Final answer
    x = 101,717.50

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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.