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Finding the Fourth Proportional to 119,287.59, 164,617.06 and 65,572.94

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Solution

The fourth proportional to 119,287.59, 164,617.06 and 65,572.94 is: 90,490.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,287.59 : 164,617.06 = 65,572.94 : x
  2. Step 2: Convert to fraction form
    119,287.59/164,617.06 = 65,572.94/x
  3. Step 3: Cross multiply
    119,287.59x = 164,617.06 × 65,572.94
  4. Step 4: Simplify right side
    119,287.59x = 10,794,424,968.92
  5. Step 5: Solve for x
    x = 10,794,424,968.92/119,287.59
  6. Step 6: Final answer
    x = 90,490.77

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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.