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Finding the Fourth Proportional to 104,060.55, 143,603.54 and 56,313.90

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Solution

The fourth proportional to 104,060.55, 143,603.54 and 56,313.90 is: 77,713.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,060.55 : 143,603.54 = 56,313.90 : x
  2. Step 2: Convert to fraction form
    104,060.55/143,603.54 = 56,313.90/x
  3. Step 3: Cross multiply
    104,060.55x = 143,603.54 × 56,313.90
  4. Step 4: Simplify right side
    104,060.55x = 8,086,875,391.21
  5. Step 5: Solve for x
    x = 8,086,875,391.21/104,060.55
  6. Step 6: Final answer
    x = 77,713.17

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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.