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Finding the Fourth Proportional to 92,547, 138,844.98 and 53,118

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Solution

The fourth proportional to 92,547, 138,844.98 and 53,118 is: 79,691.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,547 : 138,844.98 = 53,118 : x
  2. Step 2: Convert to fraction form
    92,547/138,844.98 = 53,118/x
  3. Step 3: Cross multiply
    92,547x = 138,844.98 × 53,118
  4. Step 4: Simplify right side
    92,547x = 7,375,167,647.64
  5. Step 5: Solve for x
    x = 7,375,167,647.64/92,547
  6. Step 6: Final answer
    x = 79,691.05

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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.