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Finding the Fourth Proportional to 199,577.40, 299,366.10 and 147,089.40

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Solution

The fourth proportional to 199,577.40, 299,366.10 and 147,089.40 is: 220,634.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,577.40 : 299,366.10 = 147,089.40 : x
  2. Step 2: Convert to fraction form
    199,577.40/299,366.10 = 147,089.40/x
  3. Step 3: Cross multiply
    199,577.40x = 299,366.10 × 147,089.40
  4. Step 4: Simplify right side
    199,577.40x = 44,033,580,029.34
  5. Step 5: Solve for x
    x = 44,033,580,029.34/199,577.40
  6. Step 6: Final answer
    x = 220,634.10

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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.