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Finding the Fourth Proportional to 207,224.40, 310,760.44 and 74,068.72

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Solution

The fourth proportional to 207,224.40, 310,760.44 and 74,068.72 is: 111,075.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,224.40 : 310,760.44 = 74,068.72 : x
  2. Step 2: Convert to fraction form
    207,224.40/310,760.44 = 74,068.72/x
  3. Step 3: Cross multiply
    207,224.40x = 310,760.44 × 74,068.72
  4. Step 4: Simplify right side
    207,224.40x = 23,017,628,017.44
  5. Step 5: Solve for x
    x = 23,017,628,017.44/207,224.40
  6. Step 6: Final answer
    x = 111,075.86

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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.