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Finding the Fourth Proportional to 114,043.60, 157,401.53 and 66,303.82

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Solution

The fourth proportional to 114,043.60, 157,401.53 and 66,303.82 is: 91,511.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,043.60 : 157,401.53 = 66,303.82 : x
  2. Step 2: Convert to fraction form
    114,043.60/157,401.53 = 66,303.82/x
  3. Step 3: Cross multiply
    114,043.60x = 157,401.53 × 66,303.82
  4. Step 4: Simplify right side
    114,043.60x = 10,436,322,712.84
  5. Step 5: Solve for x
    x = 10,436,322,712.84/114,043.60
  6. Step 6: Final answer
    x = 91,511.69

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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.