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Finding the Fourth Proportional to 104,857.80, 157,440.30 and 73,830.60

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Solution

The fourth proportional to 104,857.80, 157,440.30 and 73,830.60 is: 110,854.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,857.80 : 157,440.30 = 73,830.60 : x
  2. Step 2: Convert to fraction form
    104,857.80/157,440.30 = 73,830.60/x
  3. Step 3: Cross multiply
    104,857.80x = 157,440.30 × 73,830.60
  4. Step 4: Simplify right side
    104,857.80x = 11,623,911,813.18
  5. Step 5: Solve for x
    x = 11,623,911,813.18/104,857.80
  6. Step 6: Final answer
    x = 110,854.05

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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.