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Finding the Fourth Proportional to 199,610.10, 299,415.15 and 187,800.30

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Solution

The fourth proportional to 199,610.10, 299,415.15 and 187,800.30 is: 281,700.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,610.10 : 299,415.15 = 187,800.30 : x
  2. Step 2: Convert to fraction form
    199,610.10/299,415.15 = 187,800.30/x
  3. Step 3: Cross multiply
    199,610.10x = 299,415.15 × 187,800.30
  4. Step 4: Simplify right side
    199,610.10x = 56,230,254,994.55
  5. Step 5: Solve for x
    x = 56,230,254,994.55/199,610.10
  6. Step 6: Final answer
    x = 281,700.45

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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.