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Finding the Fourth Proportional to 207,068.80, 310,603.20 and 73,953.40

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Solution

The fourth proportional to 207,068.80, 310,603.20 and 73,953.40 is: 110,930.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,068.80 : 310,603.20 = 73,953.40 : x
  2. Step 2: Convert to fraction form
    207,068.80/310,603.20 = 73,953.40/x
  3. Step 3: Cross multiply
    207,068.80x = 310,603.20 × 73,953.40
  4. Step 4: Simplify right side
    207,068.80x = 22,970,162,690.88
  5. Step 5: Solve for x
    x = 22,970,162,690.88/207,068.80
  6. Step 6: Final answer
    x = 110,930.10

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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.