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Finding the Fourth Proportional to 117,415.65, 162,033.65 and 63,700.65

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Solution

The fourth proportional to 117,415.65, 162,033.65 and 63,700.65 is: 87,906.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,415.65 : 162,033.65 = 63,700.65 : x
  2. Step 2: Convert to fraction form
    117,415.65/162,033.65 = 63,700.65/x
  3. Step 3: Cross multiply
    117,415.65x = 162,033.65 × 63,700.65
  4. Step 4: Simplify right side
    117,415.65x = 10,321,648,826.87
  5. Step 5: Solve for x
    x = 10,321,648,826.87/117,415.65
  6. Step 6: Final answer
    x = 87,906.93

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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.