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Finding the Fourth Proportional to 124,894.80, 187,342.20 and 82,904.40

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Solution

The fourth proportional to 124,894.80, 187,342.20 and 82,904.40 is: 124,356.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,894.80 : 187,342.20 = 82,904.40 : x
  2. Step 2: Convert to fraction form
    124,894.80/187,342.20 = 82,904.40/x
  3. Step 3: Cross multiply
    124,894.80x = 187,342.20 × 82,904.40
  4. Step 4: Simplify right side
    124,894.80x = 15,531,492,685.68
  5. Step 5: Solve for x
    x = 15,531,492,685.68/124,894.80
  6. Step 6: Final answer
    x = 124,356.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.