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Finding the Fourth Proportional to 140,244.66, 210,428.64 and 73,669.32

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Solution

The fourth proportional to 140,244.66, 210,428.64 and 73,669.32 is: 110,536.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,244.66 : 210,428.64 = 73,669.32 : x
  2. Step 2: Convert to fraction form
    140,244.66/210,428.64 = 73,669.32/x
  3. Step 3: Cross multiply
    140,244.66x = 210,428.64 × 73,669.32
  4. Step 4: Simplify right side
    140,244.66x = 15,502,134,817.32
  5. Step 5: Solve for x
    x = 15,502,134,817.32/140,244.66
  6. Step 6: Final answer
    x = 110,536.36

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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.