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Finding the Fourth Proportional to 124,485.94, 171,792.93 and 67,899.34

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Solution

The fourth proportional to 124,485.94, 171,792.93 and 67,899.34 is: 93,702.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,485.94 : 171,792.93 = 67,899.34 : x
  2. Step 2: Convert to fraction form
    124,485.94/171,792.93 = 67,899.34/x
  3. Step 3: Cross multiply
    124,485.94x = 171,792.93 × 67,899.34
  4. Step 4: Simplify right side
    124,485.94x = 11,664,626,563.67
  5. Step 5: Solve for x
    x = 11,664,626,563.67/124,485.94
  6. Step 6: Final answer
    x = 93,702.36

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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.