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Finding the Fourth Proportional to 104,245.76, 143,859.07 and 56,499.13

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Solution

The fourth proportional to 104,245.76, 143,859.07 and 56,499.13 is: 77,968.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,245.76 : 143,859.07 = 56,499.13 : x
  2. Step 2: Convert to fraction form
    104,245.76/143,859.07 = 56,499.13/x
  3. Step 3: Cross multiply
    104,245.76x = 143,859.07 × 56,499.13
  4. Step 4: Simplify right side
    104,245.76x = 8,127,912,548.06
  5. Step 5: Solve for x
    x = 8,127,912,548.06/104,245.76
  6. Step 6: Final answer
    x = 77,968.76

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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.