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Finding the Fourth Proportional to 92,590.74, 138,903.39 and 30,304.98

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Solution

The fourth proportional to 92,590.74, 138,903.39 and 30,304.98 is: 45,463.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,590.74 : 138,903.39 = 30,304.98 : x
  2. Step 2: Convert to fraction form
    92,590.74/138,903.39 = 30,304.98/x
  3. Step 3: Cross multiply
    92,590.74x = 138,903.39 × 30,304.98
  4. Step 4: Simplify right side
    92,590.74x = 4,209,464,455.88
  5. Step 5: Solve for x
    x = 4,209,464,455.88/92,590.74
  6. Step 6: Final answer
    x = 45,463.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.