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Finding the Fourth Proportional to 124,804.66, 172,242.54 and 73,833.81

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Solution

The fourth proportional to 124,804.66, 172,242.54 and 73,833.81 is: 101,897.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,804.66 : 172,242.54 = 73,833.81 : x
  2. Step 2: Convert to fraction form
    124,804.66/172,242.54 = 73,833.81/x
  3. Step 3: Cross multiply
    124,804.66x = 172,242.54 × 73,833.81
  4. Step 4: Simplify right side
    124,804.66x = 12,717,322,972.28
  5. Step 5: Solve for x
    x = 12,717,322,972.28/124,804.66
  6. Step 6: Final answer
    x = 101,897.82

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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.