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Finding the Fourth Proportional to 92,973.40, 139,445.42 and 40,368.76

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Solution

The fourth proportional to 92,973.40, 139,445.42 and 40,368.76 is: 60,546.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,973.40 : 139,445.42 = 40,368.76 : x
  2. Step 2: Convert to fraction form
    92,973.40/139,445.42 = 40,368.76/x
  3. Step 3: Cross multiply
    92,973.40x = 139,445.42 × 40,368.76
  4. Step 4: Simplify right side
    92,973.40x = 5,629,238,693.08
  5. Step 5: Solve for x
    x = 5,629,238,693.08/92,973.40
  6. Step 6: Final answer
    x = 60,546.77

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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.