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Finding the Fourth Proportional to 253,025.40, 349,175.10 and 139,848.14

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Solution

The fourth proportional to 253,025.40, 349,175.10 and 139,848.14 is: 192,990.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,025.40 : 349,175.10 = 139,848.14 : x
  2. Step 2: Convert to fraction form
    253,025.40/349,175.10 = 139,848.14/x
  3. Step 3: Cross multiply
    253,025.40x = 349,175.10 × 139,848.14
  4. Step 4: Simplify right side
    253,025.40x = 48,831,488,269.31
  5. Step 5: Solve for x
    x = 48,831,488,269.31/253,025.40
  6. Step 6: Final answer
    x = 192,990.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.