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Finding the Fourth Proportional to 177,891.91, 245,488.79 and 97,318.51

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Solution

The fourth proportional to 177,891.91, 245,488.79 and 97,318.51 is: 134,298.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,891.91 : 245,488.79 = 97,318.51 : x
  2. Step 2: Convert to fraction form
    177,891.91/245,488.79 = 97,318.51/x
  3. Step 3: Cross multiply
    177,891.91x = 245,488.79 × 97,318.51
  4. Step 4: Simplify right side
    177,891.91x = 23,890,602,894.08
  5. Step 5: Solve for x
    x = 23,890,602,894.08/177,891.91
  6. Step 6: Final answer
    x = 134,298.42

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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.