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Finding the Fourth Proportional to 124,838.80, 187,258.20 and 89,846.80

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Solution

The fourth proportional to 124,838.80, 187,258.20 and 89,846.80 is: 134,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,838.80 : 187,258.20 = 89,846.80 : x
  2. Step 2: Convert to fraction form
    124,838.80/187,258.20 = 89,846.80/x
  3. Step 3: Cross multiply
    124,838.80x = 187,258.20 × 89,846.80
  4. Step 4: Simplify right side
    124,838.80x = 16,824,550,043.76
  5. Step 5: Solve for x
    x = 16,824,550,043.76/124,838.80
  6. Step 6: Final answer
    x = 134,770.20

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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.