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Finding the Fourth Proportional to 124,518.69, 171,834.99 and 70,803.71

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Solution

The fourth proportional to 124,518.69, 171,834.99 and 70,803.71 is: 97,708.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,518.69 : 171,834.99 = 70,803.71 : x
  2. Step 2: Convert to fraction form
    124,518.69/171,834.99 = 70,803.71/x
  3. Step 3: Cross multiply
    124,518.69x = 171,834.99 × 70,803.71
  4. Step 4: Simplify right side
    124,518.69x = 12,166,553,940.64
  5. Step 5: Solve for x
    x = 12,166,553,940.64/124,518.69
  6. Step 6: Final answer
    x = 97,708.66

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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.