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Finding the Fourth Proportional to 117,730.77, 176,620.74 and 38,900.35

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Solution

The fourth proportional to 117,730.77, 176,620.74 and 38,900.35 is: 58,358.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,730.77 : 176,620.74 = 38,900.35 : x
  2. Step 2: Convert to fraction form
    117,730.77/176,620.74 = 38,900.35/x
  3. Step 3: Cross multiply
    117,730.77x = 176,620.74 × 38,900.35
  4. Step 4: Simplify right side
    117,730.77x = 6,870,608,603.26
  5. Step 5: Solve for x
    x = 6,870,608,603.26/117,730.77
  6. Step 6: Final answer
    x = 58,358.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.