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Finding the Fourth Proportional to 114,034.74, 157,392.92 and 66,315.62

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Solution

The fourth proportional to 114,034.74, 157,392.92 and 66,315.62 is: 91,530.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,034.74 : 157,392.92 = 66,315.62 : x
  2. Step 2: Convert to fraction form
    114,034.74/157,392.92 = 66,315.62/x
  3. Step 3: Cross multiply
    114,034.74x = 157,392.92 × 66,315.62
  4. Step 4: Simplify right side
    114,034.74x = 10,437,607,954.87
  5. Step 5: Solve for x
    x = 10,437,607,954.87/114,034.74
  6. Step 6: Final answer
    x = 91,530.07

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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.