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Finding the Fourth Proportional to 141,627.42, 195,438.42 and 77,952.78

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Solution

The fourth proportional to 141,627.42, 195,438.42 and 77,952.78 is: 107,570.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,627.42 : 195,438.42 = 77,952.78 : x
  2. Step 2: Convert to fraction form
    141,627.42/195,438.42 = 77,952.78/x
  3. Step 3: Cross multiply
    141,627.42x = 195,438.42 × 77,952.78
  4. Step 4: Simplify right side
    141,627.42x = 15,234,968,157.81
  5. Step 5: Solve for x
    x = 15,234,968,157.81/141,627.42
  6. Step 6: Final answer
    x = 107,570.75

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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.