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Finding the Fourth Proportional to 119,460.39, 164,786.76 and 74,670.63

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Solution

The fourth proportional to 119,460.39, 164,786.76 and 74,670.63 is: 103,002.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,460.39 : 164,786.76 = 74,670.63 : x
  2. Step 2: Convert to fraction form
    119,460.39/164,786.76 = 74,670.63/x
  3. Step 3: Cross multiply
    119,460.39x = 164,786.76 × 74,670.63
  4. Step 4: Simplify right side
    119,460.39x = 12,304,731,184.86
  5. Step 5: Solve for x
    x = 12,304,731,184.86/119,460.39
  6. Step 6: Final answer
    x = 103,002.60

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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.