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Finding the Fourth Proportional to 101,444.00, 139,981.97 and 56,120.85

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Solution

The fourth proportional to 101,444.00, 139,981.97 and 56,120.85 is: 77,440.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,444.00 : 139,981.97 = 56,120.85 : x
  2. Step 2: Convert to fraction form
    101,444.00/139,981.97 = 56,120.85/x
  3. Step 3: Cross multiply
    101,444.00x = 139,981.97 × 56,120.85
  4. Step 4: Simplify right side
    101,444.00x = 7,855,907,281.38
  5. Step 5: Solve for x
    x = 7,855,907,281.38/101,444.00
  6. Step 6: Final answer
    x = 77,440.83

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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.