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Finding the Fourth Proportional to 124,510.74, 171,880.48 and 84,346.48

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Solution

The fourth proportional to 124,510.74, 171,880.48 and 84,346.48 is: 116,435.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,510.74 : 171,880.48 = 84,346.48 : x
  2. Step 2: Convert to fraction form
    124,510.74/171,880.48 = 84,346.48/x
  3. Step 3: Cross multiply
    124,510.74x = 171,880.48 × 84,346.48
  4. Step 4: Simplify right side
    124,510.74x = 14,497,513,468.71
  5. Step 5: Solve for x
    x = 14,497,513,468.71/124,510.74
  6. Step 6: Final answer
    x = 116,435.85

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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.