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Finding the Fourth Proportional to 121,300.40, 181,950.60 and 96,028.40

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Solution

The fourth proportional to 121,300.40, 181,950.60 and 96,028.40 is: 144,042.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,300.40 : 181,950.60 = 96,028.40 : x
  2. Step 2: Convert to fraction form
    121,300.40/181,950.60 = 96,028.40/x
  3. Step 3: Cross multiply
    121,300.40x = 181,950.60 × 96,028.40
  4. Step 4: Simplify right side
    121,300.40x = 17,472,424,997.04
  5. Step 5: Solve for x
    x = 17,472,424,997.04/121,300.40
  6. Step 6: Final answer
    x = 144,042.60

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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.