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Finding the Fourth Proportional to 162,176.84, 223,801.92 and 90,558.08

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Solution

The fourth proportional to 162,176.84, 223,801.92 and 90,558.08 is: 124,968.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,176.84 : 223,801.92 = 90,558.08 : x
  2. Step 2: Convert to fraction form
    162,176.84/223,801.92 = 90,558.08/x
  3. Step 3: Cross multiply
    162,176.84x = 223,801.92 × 90,558.08
  4. Step 4: Simplify right side
    162,176.84x = 20,267,072,175.51
  5. Step 5: Solve for x
    x = 20,267,072,175.51/162,176.84
  6. Step 6: Final answer
    x = 124,968.97

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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.