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Finding the Fourth Proportional to 270,045, 372,657.69 and 149,191.38

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Solution

The fourth proportional to 270,045, 372,657.69 and 149,191.38 is: 205,881.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,045 : 372,657.69 = 149,191.38 : x
  2. Step 2: Convert to fraction form
    270,045/372,657.69 = 149,191.38/x
  3. Step 3: Cross multiply
    270,045x = 372,657.69 × 149,191.38
  4. Step 4: Simplify right side
    270,045x = 55,597,315,038.71
  5. Step 5: Solve for x
    x = 55,597,315,038.71/270,045
  6. Step 6: Final answer
    x = 205,881.67

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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.