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Finding the Fourth Proportional to 103,335.19, 154,858.38 and 55,847.90

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Solution

The fourth proportional to 103,335.19, 154,858.38 and 55,847.90 is: 83,693.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,335.19 : 154,858.38 = 55,847.90 : x
  2. Step 2: Convert to fraction form
    103,335.19/154,858.38 = 55,847.90/x
  3. Step 3: Cross multiply
    103,335.19x = 154,858.38 × 55,847.90
  4. Step 4: Simplify right side
    103,335.19x = 8,648,514,941.18
  5. Step 5: Solve for x
    x = 8,648,514,941.18/103,335.19
  6. Step 6: Final answer
    x = 83,693.80

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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.