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Finding the Fourth Proportional to 118,892.64, 164,088.60 and 73,585.08

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Solution

The fourth proportional to 118,892.64, 164,088.60 and 73,585.08 is: 101,557.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,892.64 : 164,088.60 = 73,585.08 : x
  2. Step 2: Convert to fraction form
    118,892.64/164,088.60 = 73,585.08/x
  3. Step 3: Cross multiply
    118,892.64x = 164,088.60 × 73,585.08
  4. Step 4: Simplify right side
    118,892.64x = 12,074,472,758.09
  5. Step 5: Solve for x
    x = 12,074,472,758.09/118,892.64
  6. Step 6: Final answer
    x = 101,557.78

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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.