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Finding the Fourth Proportional to 124,495.77, 171,802.66 and 67,905.93

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Solution

The fourth proportional to 124,495.77, 171,802.66 and 67,905.93 is: 93,709.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,495.77 : 171,802.66 = 67,905.93 : x
  2. Step 2: Convert to fraction form
    124,495.77/171,802.66 = 67,905.93/x
  3. Step 3: Cross multiply
    124,495.77x = 171,802.66 × 67,905.93
  4. Step 4: Simplify right side
    124,495.77x = 11,666,419,403.77
  5. Step 5: Solve for x
    x = 11,666,419,403.77/124,495.77
  6. Step 6: Final answer
    x = 93,709.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.