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Finding the Fourth Proportional to 104,060.43, 143,603.84 and 56,313.78

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Solution

The fourth proportional to 104,060.43, 143,603.84 and 56,313.78 is: 77,713.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,060.43 : 143,603.84 = 56,313.78 : x
  2. Step 2: Convert to fraction form
    104,060.43/143,603.84 = 56,313.78/x
  3. Step 3: Cross multiply
    104,060.43x = 143,603.84 × 56,313.78
  4. Step 4: Simplify right side
    104,060.43x = 8,086,874,655.19
  5. Step 5: Solve for x
    x = 8,086,874,655.19/104,060.43
  6. Step 6: Final answer
    x = 77,713.25

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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.