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Finding the Fourth Proportional to 162,264.64, 223,924.64 and 89,665.51

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Solution

The fourth proportional to 162,264.64, 223,924.64 and 89,665.51 is: 123,738.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,264.64 : 223,924.64 = 89,665.51 : x
  2. Step 2: Convert to fraction form
    162,264.64/223,924.64 = 89,665.51/x
  3. Step 3: Cross multiply
    162,264.64x = 223,924.64 × 89,665.51
  4. Step 4: Simplify right side
    162,264.64x = 20,078,317,047.17
  5. Step 5: Solve for x
    x = 20,078,317,047.17/162,264.64
  6. Step 6: Final answer
    x = 123,738.09

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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.