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Finding the Fourth Proportional to 124,643.58, 171,760.95 and 88,770.30

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Solution

The fourth proportional to 124,643.58, 171,760.95 and 88,770.30 is: 122,326.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,643.58 : 171,760.95 = 88,770.30 : x
  2. Step 2: Convert to fraction form
    124,643.58/171,760.95 = 88,770.30/x
  3. Step 3: Cross multiply
    124,643.58x = 171,760.95 × 88,770.30
  4. Step 4: Simplify right side
    124,643.58x = 15,247,271,059.79
  5. Step 5: Solve for x
    x = 15,247,271,059.79/124,643.58
  6. Step 6: Final answer
    x = 122,326.97

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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.