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Finding the Fourth Proportional to 340,449.58, 469,903.18 and 197,186.50

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Solution

The fourth proportional to 340,449.58, 469,903.18 and 197,186.50 is: 272,165.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,449.58 : 469,903.18 = 197,186.50 : x
  2. Step 2: Convert to fraction form
    340,449.58/469,903.18 = 197,186.50/x
  3. Step 3: Cross multiply
    340,449.58x = 469,903.18 × 197,186.50
  4. Step 4: Simplify right side
    340,449.58x = 92,658,563,403.07
  5. Step 5: Solve for x
    x = 92,658,563,403.07/340,449.58
  6. Step 6: Final answer
    x = 272,165.30

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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.