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Finding the Fourth Proportional to 252,203.36, 348,041.40 and 139,023.68

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Solution

The fourth proportional to 252,203.36, 348,041.40 and 139,023.68 is: 191,853.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,203.36 : 348,041.40 = 139,023.68 : x
  2. Step 2: Convert to fraction form
    252,203.36/348,041.40 = 139,023.68/x
  3. Step 3: Cross multiply
    252,203.36x = 348,041.40 × 139,023.68
  4. Step 4: Simplify right side
    252,203.36x = 48,385,996,220.35
  5. Step 5: Solve for x
    x = 48,385,996,220.35/252,203.36
  6. Step 6: Final answer
    x = 191,853.10

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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.