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Finding the Fourth Proportional to 163,637.76, 245,456.94 and 45,309.44

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Solution

The fourth proportional to 163,637.76, 245,456.94 and 45,309.44 is: 67,964.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,637.76 : 245,456.94 = 45,309.44 : x
  2. Step 2: Convert to fraction form
    163,637.76/245,456.94 = 45,309.44/x
  3. Step 3: Cross multiply
    163,637.76x = 245,456.94 × 45,309.44
  4. Step 4: Simplify right side
    163,637.76x = 11,121,516,495.51
  5. Step 5: Solve for x
    x = 11,121,516,495.51/163,637.76
  6. Step 6: Final answer
    x = 67,964.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.