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Finding the Fourth Proportional to 124,391.48, 171,658.50 and 67,803.08

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Solution

The fourth proportional to 124,391.48, 171,658.50 and 67,803.08 is: 93,567.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,391.48 : 171,658.50 = 67,803.08 : x
  2. Step 2: Convert to fraction form
    124,391.48/171,658.50 = 67,803.08/x
  3. Step 3: Cross multiply
    124,391.48x = 171,658.50 × 67,803.08
  4. Step 4: Simplify right side
    124,391.48x = 11,638,975,008.18
  5. Step 5: Solve for x
    x = 11,638,975,008.18/124,391.48
  6. Step 6: Final answer
    x = 93,567.30

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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.