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Finding the Fourth Proportional to 124,653.50, 171,934.53 and 84,349.52

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Solution

The fourth proportional to 124,653.50, 171,934.53 and 84,349.52 is: 116,343.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,653.50 : 171,934.53 = 84,349.52 : x
  2. Step 2: Convert to fraction form
    124,653.50/171,934.53 = 84,349.52/x
  3. Step 3: Cross multiply
    124,653.50x = 171,934.53 × 84,349.52
  4. Step 4: Simplify right side
    124,653.50x = 14,502,595,076.93
  5. Step 5: Solve for x
    x = 14,502,595,076.93/124,653.50
  6. Step 6: Final answer
    x = 116,343.26

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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.