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Finding the Fourth Proportional to 101,374.76, 139,884.95 and 56,046.62

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Solution

The fourth proportional to 101,374.76, 139,884.95 and 56,046.62 is: 77,337.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,374.76 : 139,884.95 = 56,046.62 : x
  2. Step 2: Convert to fraction form
    101,374.76/139,884.95 = 56,046.62/x
  3. Step 3: Cross multiply
    101,374.76x = 139,884.95 × 56,046.62
  4. Step 4: Simplify right side
    101,374.76x = 7,840,077,656.71
  5. Step 5: Solve for x
    x = 7,840,077,656.71/101,374.76
  6. Step 6: Final answer
    x = 77,337.57

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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.