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Finding the Fourth Proportional to 124,570.71, 171,908.12 and 67,983.30

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Solution

The fourth proportional to 124,570.71, 171,908.12 and 67,983.30 is: 93,817.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,570.71 : 171,908.12 = 67,983.30 : x
  2. Step 2: Convert to fraction form
    124,570.71/171,908.12 = 67,983.30/x
  3. Step 3: Cross multiply
    124,570.71x = 171,908.12 × 67,983.30
  4. Step 4: Simplify right side
    124,570.71x = 11,686,881,294.40
  5. Step 5: Solve for x
    x = 11,686,881,294.40/124,570.71
  6. Step 6: Final answer
    x = 93,817.25

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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.