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Finding the Fourth Proportional to 216,708.75, 299,058.08 and 141,257.25

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Solution

The fourth proportional to 216,708.75, 299,058.08 and 141,257.25 is: 194,935.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,708.75 : 299,058.08 = 141,257.25 : x
  2. Step 2: Convert to fraction form
    216,708.75/299,058.08 = 141,257.25/x
  3. Step 3: Cross multiply
    216,708.75x = 299,058.08 × 141,257.25
  4. Step 4: Simplify right side
    216,708.75x = 42,244,121,264.79
  5. Step 5: Solve for x
    x = 42,244,121,264.79/216,708.75
  6. Step 6: Final answer
    x = 194,935.01

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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.