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Finding the Fourth Proportional to 140,348.14, 210,536.38 and 45,574.36

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Solution

The fourth proportional to 140,348.14, 210,536.38 and 45,574.36 is: 68,366.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,348.14 : 210,536.38 = 45,574.36 : x
  2. Step 2: Convert to fraction form
    140,348.14/210,536.38 = 45,574.36/x
  3. Step 3: Cross multiply
    140,348.14x = 210,536.38 × 45,574.36
  4. Step 4: Simplify right side
    140,348.14x = 9,595,060,775.22
  5. Step 5: Solve for x
    x = 9,595,060,775.22/140,348.14
  6. Step 6: Final answer
    x = 68,366.14

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