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Finding the Fourth Proportional to 252,237.96, 348,090.80 and 139,064.76

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Solution

The fourth proportional to 252,237.96, 348,090.80 and 139,064.76 is: 191,910.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,237.96 : 348,090.80 = 139,064.76 : x
  2. Step 2: Convert to fraction form
    252,237.96/348,090.80 = 139,064.76/x
  3. Step 3: Cross multiply
    252,237.96x = 348,090.80 × 139,064.76
  4. Step 4: Simplify right side
    252,237.96x = 48,407,163,560.21
  5. Step 5: Solve for x
    x = 48,407,163,560.21/252,237.96
  6. Step 6: Final answer
    x = 191,910.70

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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.