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Finding the Fourth Proportional to 159,412.84, 220,095.60 and 99,073.52

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Solution

The fourth proportional to 159,412.84, 220,095.60 and 99,073.52 is: 136,787.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,412.84 : 220,095.60 = 99,073.52 : x
  2. Step 2: Convert to fraction form
    159,412.84/220,095.60 = 99,073.52/x
  3. Step 3: Cross multiply
    159,412.84x = 220,095.60 × 99,073.52
  4. Step 4: Simplify right side
    159,412.84x = 21,805,645,828.51
  5. Step 5: Solve for x
    x = 21,805,645,828.51/159,412.84
  6. Step 6: Final answer
    x = 136,787.26

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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.