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Finding the Fourth Proportional to 140,756.73, 211,018.73 and 65,840.01

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Solution

The fourth proportional to 140,756.73, 211,018.73 and 65,840.01 is: 98,705.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,756.73 : 211,018.73 = 65,840.01 : x
  2. Step 2: Convert to fraction form
    140,756.73/211,018.73 = 65,840.01/x
  3. Step 3: Cross multiply
    140,756.73x = 211,018.73 × 65,840.01
  4. Step 4: Simplify right side
    140,756.73x = 13,893,474,964.19
  5. Step 5: Solve for x
    x = 13,893,474,964.19/140,756.73
  6. Step 6: Final answer
    x = 98,705.58

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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.