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Finding the Fourth Proportional to 169,870.60, 234,415.45 and 93,389.14

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Solution

The fourth proportional to 169,870.60, 234,415.45 and 93,389.14 is: 128,873.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,870.60 : 234,415.45 = 93,389.14 : x
  2. Step 2: Convert to fraction form
    169,870.60/234,415.45 = 93,389.14/x
  3. Step 3: Cross multiply
    169,870.60x = 234,415.45 × 93,389.14
  4. Step 4: Simplify right side
    169,870.60x = 21,891,857,278.21
  5. Step 5: Solve for x
    x = 21,891,857,278.21/169,870.60
  6. Step 6: Final answer
    x = 128,873.73

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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.