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Finding the Fourth Proportional to 185,643.92, 256,169.04 and 105,058.64

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Solution

The fourth proportional to 185,643.92, 256,169.04 and 105,058.64 is: 144,969.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,643.92 : 256,169.04 = 105,058.64 : x
  2. Step 2: Convert to fraction form
    185,643.92/256,169.04 = 105,058.64/x
  3. Step 3: Cross multiply
    185,643.92x = 256,169.04 × 105,058.64
  4. Step 4: Simplify right side
    185,643.92x = 26,912,770,952.51
  5. Step 5: Solve for x
    x = 26,912,770,952.51/185,643.92
  6. Step 6: Final answer
    x = 144,969.85

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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.