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Finding the Fourth Proportional to 94,874.92, 130,911.59 and 56,649.89

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Solution

The fourth proportional to 94,874.92, 130,911.59 and 56,649.89 is: 78,167.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,874.92 : 130,911.59 = 56,649.89 : x
  2. Step 2: Convert to fraction form
    94,874.92/130,911.59 = 56,649.89/x
  3. Step 3: Cross multiply
    94,874.92x = 130,911.59 × 56,649.89
  4. Step 4: Simplify right side
    94,874.92x = 7,416,127,642.13
  5. Step 5: Solve for x
    x = 7,416,127,642.13/94,874.92
  6. Step 6: Final answer
    x = 78,167.42

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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.