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Finding the Fourth Proportional to 124,372.13, 171,633.71 and 67,783.51

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Solution

The fourth proportional to 124,372.13, 171,633.71 and 67,783.51 is: 93,541.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,372.13 : 171,633.71 = 67,783.51 : x
  2. Step 2: Convert to fraction form
    124,372.13/171,633.71 = 67,783.51/x
  3. Step 3: Cross multiply
    124,372.13x = 171,633.71 × 67,783.51
  4. Step 4: Simplify right side
    124,372.13x = 11,633,934,101.04
  5. Step 5: Solve for x
    x = 11,633,934,101.04/124,372.13
  6. Step 6: Final answer
    x = 93,541.33

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1.5x scale

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.