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Finding the Fourth Proportional to 119,334.32, 164,677.88 and 65,619.28

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Solution

The fourth proportional to 119,334.32, 164,677.88 and 65,619.28 is: 90,552.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,334.32 : 164,677.88 = 65,619.28 : x
  2. Step 2: Convert to fraction form
    119,334.32/164,677.88 = 65,619.28/x
  3. Step 3: Cross multiply
    119,334.32x = 164,677.88 × 65,619.28
  4. Step 4: Simplify right side
    119,334.32x = 10,806,043,917.53
  5. Step 5: Solve for x
    x = 10,806,043,917.53/119,334.32
  6. Step 6: Final answer
    x = 90,552.69

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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.