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Finding the Fourth Proportional to 124,537.64, 171,862.50 and 67,950.20

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Solution

The fourth proportional to 124,537.64, 171,862.50 and 67,950.20 is: 93,771.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,537.64 : 171,862.50 = 67,950.20 : x
  2. Step 2: Convert to fraction form
    124,537.64/171,862.50 = 67,950.20/x
  3. Step 3: Cross multiply
    124,537.64x = 171,862.50 × 67,950.20
  4. Step 4: Simplify right side
    124,537.64x = 11,678,091,247.50
  5. Step 5: Solve for x
    x = 11,678,091,247.50/124,537.64
  6. Step 6: Final answer
    x = 93,771.58

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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.