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Finding the Fourth Proportional to 190,422.50, 285,805.06 and 101,751.80

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Solution

The fourth proportional to 190,422.50, 285,805.06 and 101,751.80 is: 152,719.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,422.50 : 285,805.06 = 101,751.80 : x
  2. Step 2: Convert to fraction form
    190,422.50/285,805.06 = 101,751.80/x
  3. Step 3: Cross multiply
    190,422.50x = 285,805.06 × 101,751.80
  4. Step 4: Simplify right side
    190,422.50x = 29,081,179,304.11
  5. Step 5: Solve for x
    x = 29,081,179,304.11/190,422.50
  6. Step 6: Final answer
    x = 152,719.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.