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Finding the Fourth Proportional to 92,316.94, 138,419.94 and 36,090.08

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Solution

The fourth proportional to 92,316.94, 138,419.94 and 36,090.08 is: 54,113.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,316.94 : 138,419.94 = 36,090.08 : x
  2. Step 2: Convert to fraction form
    92,316.94/138,419.94 = 36,090.08/x
  3. Step 3: Cross multiply
    92,316.94x = 138,419.94 × 36,090.08
  4. Step 4: Simplify right side
    92,316.94x = 4,995,585,835.65
  5. Step 5: Solve for x
    x = 4,995,585,835.65/92,316.94
  6. Step 6: Final answer
    x = 54,113.43

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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.