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Finding the Fourth Proportional to 169,491, 233,896.95 and 93,011.40

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Solution

The fourth proportional to 169,491, 233,896.95 and 93,011.40 is: 128,355.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,491 : 233,896.95 = 93,011.40 : x
  2. Step 2: Convert to fraction form
    169,491/233,896.95 = 93,011.40/x
  3. Step 3: Cross multiply
    169,491x = 233,896.95 × 93,011.40
  4. Step 4: Simplify right side
    169,491x = 21,755,082,775.23
  5. Step 5: Solve for x
    x = 21,755,082,775.23/169,491
  6. Step 6: Final answer
    x = 128,355.39

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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.