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Finding the Fourth Proportional to 104,999.63, 157,499.44 and 31,127.63

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Solution

The fourth proportional to 104,999.63, 157,499.44 and 31,127.63 is: 46,691.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,999.63 : 157,499.44 = 31,127.63 : x
  2. Step 2: Convert to fraction form
    104,999.63/157,499.44 = 31,127.63/x
  3. Step 3: Cross multiply
    104,999.63x = 157,499.44 × 31,127.63
  4. Step 4: Simplify right side
    104,999.63x = 4,902,583,428.21
  5. Step 5: Solve for x
    x = 4,902,583,428.21/104,999.63
  6. Step 6: Final answer
    x = 46,691.44

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1.5x scale

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.