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Finding the Fourth Proportional to 141,157.99, 194,798.35 and 77,499.88

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Solution

The fourth proportional to 141,157.99, 194,798.35 and 77,499.88 is: 106,950.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,157.99 : 194,798.35 = 77,499.88 : x
  2. Step 2: Convert to fraction form
    141,157.99/194,798.35 = 77,499.88/x
  3. Step 3: Cross multiply
    141,157.99x = 194,798.35 × 77,499.88
  4. Step 4: Simplify right side
    141,157.99x = 15,096,848,749.20
  5. Step 5: Solve for x
    x = 15,096,848,749.20/141,157.99
  6. Step 6: Final answer
    x = 106,950.01

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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.