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Finding the Fourth Proportional to 501,806.43, 752,703.12 and 122,730.45

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Solution

The fourth proportional to 501,806.43, 752,703.12 and 122,730.45 is: 184,094.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,806.43 : 752,703.12 = 122,730.45 : x
  2. Step 2: Convert to fraction form
    501,806.43/752,703.12 = 122,730.45/x
  3. Step 3: Cross multiply
    501,806.43x = 752,703.12 × 122,730.45
  4. Step 4: Simplify right side
    501,806.43x = 92,379,592,634.00
  5. Step 5: Solve for x
    x = 92,379,592,634.00/501,806.43
  6. Step 6: Final answer
    x = 184,094.08

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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.