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Finding the Fourth Proportional to 124,491.74, 171,796.75 and 70,039.76

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Solution

The fourth proportional to 124,491.74, 171,796.75 and 70,039.76 is: 96,653.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,491.74 : 171,796.75 = 70,039.76 : x
  2. Step 2: Convert to fraction form
    124,491.74/171,796.75 = 70,039.76/x
  3. Step 3: Cross multiply
    124,491.74x = 171,796.75 × 70,039.76
  4. Step 4: Simplify right side
    124,491.74x = 12,032,602,104.70
  5. Step 5: Solve for x
    x = 12,032,602,104.70/124,491.74
  6. Step 6: Final answer
    x = 96,653.82

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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.