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Finding the Fourth Proportional to 61,709.40, 92,330.10 and 40,973.40

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Solution

The fourth proportional to 61,709.40, 92,330.10 and 40,973.40 is: 61,304.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,709.40 : 92,330.10 = 40,973.40 : x
  2. Step 2: Convert to fraction form
    61,709.40/92,330.10 = 40,973.40/x
  3. Step 3: Cross multiply
    61,709.40x = 92,330.10 × 40,973.40
  4. Step 4: Simplify right side
    61,709.40x = 3,783,078,119.34
  5. Step 5: Solve for x
    x = 3,783,078,119.34/61,709.40
  6. Step 6: Final answer
    x = 61,304.73

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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.