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Finding the Fourth Proportional to 124,270.65, 171,497.79 and 70,553.88

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Solution

The fourth proportional to 124,270.65, 171,497.79 and 70,553.88 is: 97,366.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,270.65 : 171,497.79 = 70,553.88 : x
  2. Step 2: Convert to fraction form
    124,270.65/171,497.79 = 70,553.88/x
  3. Step 3: Cross multiply
    124,270.65x = 171,497.79 × 70,553.88
  4. Step 4: Simplify right side
    124,270.65x = 12,099,834,495.93
  5. Step 5: Solve for x
    x = 12,099,834,495.93/124,270.65
  6. Step 6: Final answer
    x = 97,366.79

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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.