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Finding the Fourth Proportional to 207,068.40, 310,602.60 and 132,418.80

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Solution

The fourth proportional to 207,068.40, 310,602.60 and 132,418.80 is: 198,628.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,068.40 : 310,602.60 = 132,418.80 : x
  2. Step 2: Convert to fraction form
    207,068.40/310,602.60 = 132,418.80/x
  3. Step 3: Cross multiply
    207,068.40x = 310,602.60 × 132,418.80
  4. Step 4: Simplify right side
    207,068.40x = 41,129,623,568.88
  5. Step 5: Solve for x
    x = 41,129,623,568.88/207,068.40
  6. Step 6: Final answer
    x = 198,628.20

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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.