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Finding the Fourth Proportional to 501,113.13, 751,713.50 and 127,136.13

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Solution

The fourth proportional to 501,113.13, 751,713.50 and 127,136.13 is: 190,715.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,113.13 : 751,713.50 = 127,136.13 : x
  2. Step 2: Convert to fraction form
    501,113.13/751,713.50 = 127,136.13/x
  3. Step 3: Cross multiply
    501,113.13x = 751,713.50 × 127,136.13
  4. Step 4: Simplify right side
    501,113.13x = 95,569,945,258.76
  5. Step 5: Solve for x
    x = 95,569,945,258.76/501,113.13
  6. Step 6: Final answer
    x = 190,715.31

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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.