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Finding the Fourth Proportional to 197,662.40, 272,774.22 and 107,018.40

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Solution

The fourth proportional to 197,662.40, 272,774.22 and 107,018.40 is: 147,685.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,662.40 : 272,774.22 = 107,018.40 : x
  2. Step 2: Convert to fraction form
    197,662.40/272,774.22 = 107,018.40/x
  3. Step 3: Cross multiply
    197,662.40x = 272,774.22 × 107,018.40
  4. Step 4: Simplify right side
    197,662.40x = 29,191,860,585.65
  5. Step 5: Solve for x
    x = 29,191,860,585.65/197,662.40
  6. Step 6: Final answer
    x = 147,685.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.