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Finding the Fourth Proportional to 121,127.40, 181,579.32 and 65,006.82

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Solution

The fourth proportional to 121,127.40, 181,579.32 and 65,006.82 is: 97,450.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,127.40 : 181,579.32 = 65,006.82 : x
  2. Step 2: Convert to fraction form
    121,127.40/181,579.32 = 65,006.82/x
  3. Step 3: Cross multiply
    121,127.40x = 181,579.32 × 65,006.82
  4. Step 4: Simplify right side
    121,127.40x = 11,803,894,170.96
  5. Step 5: Solve for x
    x = 11,803,894,170.96/121,127.40
  6. Step 6: Final answer
    x = 97,450.24

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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.