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Finding the Fourth Proportional to 104,670.80, 157,042.65 and 45,548.90

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Solution

The fourth proportional to 104,670.80, 157,042.65 and 45,548.90 is: 68,339.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,670.80 : 157,042.65 = 45,548.90 : x
  2. Step 2: Convert to fraction form
    104,670.80/157,042.65 = 45,548.90/x
  3. Step 3: Cross multiply
    104,670.80x = 157,042.65 × 45,548.90
  4. Step 4: Simplify right side
    104,670.80x = 7,153,119,960.59
  5. Step 5: Solve for x
    x = 7,153,119,960.59/104,670.80
  6. Step 6: Final answer
    x = 68,339.21

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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.