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Finding the Fourth Proportional to 114,860.63, 171,922.10 and 61,418.86

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Solution

The fourth proportional to 114,860.63, 171,922.10 and 61,418.86 is: 91,931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,860.63 : 171,922.10 = 61,418.86 : x
  2. Step 2: Convert to fraction form
    114,860.63/171,922.10 = 61,418.86/x
  3. Step 3: Cross multiply
    114,860.63x = 171,922.10 × 61,418.86
  4. Step 4: Simplify right side
    114,860.63x = 10,559,258,653.91
  5. Step 5: Solve for x
    x = 10,559,258,653.91/114,860.63
  6. Step 6: Final answer
    x = 91,931.05

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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.