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Finding the Fourth Proportional to 207,266.70, 310,900.05 and 157,500.30

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Solution

The fourth proportional to 207,266.70, 310,900.05 and 157,500.30 is: 236,250.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,266.70 : 310,900.05 = 157,500.30 : x
  2. Step 2: Convert to fraction form
    207,266.70/310,900.05 = 157,500.30/x
  3. Step 3: Cross multiply
    207,266.70x = 310,900.05 × 157,500.30
  4. Step 4: Simplify right side
    207,266.70x = 48,966,851,145.02
  5. Step 5: Solve for x
    x = 48,966,851,145.02/207,266.70
  6. Step 6: Final answer
    x = 236,250.45

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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.