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Finding the Fourth Proportional to 92,312.01, 138,489.75 and 29,982.51

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Solution

The fourth proportional to 92,312.01, 138,489.75 and 29,982.51 is: 44,980.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,312.01 : 138,489.75 = 29,982.51 : x
  2. Step 2: Convert to fraction form
    92,312.01/138,489.75 = 29,982.51/x
  3. Step 3: Cross multiply
    92,312.01x = 138,489.75 × 29,982.51
  4. Step 4: Simplify right side
    92,312.01x = 4,152,270,314.27
  5. Step 5: Solve for x
    x = 4,152,270,314.27/92,312.01
  6. Step 6: Final answer
    x = 44,980.82

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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.