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Finding the Fourth Proportional to 124,129, 171,296.58 and 67,539.40

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Solution

The fourth proportional to 124,129, 171,296.58 and 67,539.40 is: 93,203.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,129 : 171,296.58 = 67,539.40 : x
  2. Step 2: Convert to fraction form
    124,129/171,296.58 = 67,539.40/x
  3. Step 3: Cross multiply
    124,129x = 171,296.58 × 67,539.40
  4. Step 4: Simplify right side
    124,129x = 11,569,268,235.25
  5. Step 5: Solve for x
    x = 11,569,268,235.25/124,129
  6. Step 6: Final answer
    x = 93,203.59

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1.5x scale

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.