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Finding the Fourth Proportional to 92,316.01, 138,495.75 and 29,986.51

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Solution

The fourth proportional to 92,316.01, 138,495.75 and 29,986.51 is: 44,986.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,316.01 : 138,495.75 = 29,986.51 : x
  2. Step 2: Convert to fraction form
    92,316.01/138,495.75 = 29,986.51/x
  3. Step 3: Cross multiply
    92,316.01x = 138,495.75 × 29,986.51
  4. Step 4: Simplify right side
    92,316.01x = 4,153,004,192.33
  5. Step 5: Solve for x
    x = 4,153,004,192.33/92,316.01
  6. Step 6: Final answer
    x = 44,986.83

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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.