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Finding the Fourth Proportional to 119,288.71, 164,618.62 and 65,574.07

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Solution

The fourth proportional to 119,288.71, 164,618.62 and 65,574.07 is: 90,492.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,288.71 : 164,618.62 = 65,574.07 : x
  2. Step 2: Convert to fraction form
    119,288.71/164,618.62 = 65,574.07/x
  3. Step 3: Cross multiply
    119,288.71x = 164,618.62 × 65,574.07
  4. Step 4: Simplify right side
    119,288.71x = 10,794,712,335.70
  5. Step 5: Solve for x
    x = 10,794,712,335.70/119,288.71
  6. Step 6: Final answer
    x = 90,492.32

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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.