Home / 208,437.01-312,622.84-66,263.65

Finding the Fourth Proportional to 208,437.01, 312,622.84 and 66,263.65

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Solution

The fourth proportional to 208,437.01, 312,622.84 and 66,263.65 is: 99,385.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,437.01 : 312,622.84 = 66,263.65 : x
  2. Step 2: Convert to fraction form
    208,437.01/312,622.84 = 66,263.65/x
  3. Step 3: Cross multiply
    208,437.01x = 312,622.84 × 66,263.65
  4. Step 4: Simplify right side
    208,437.01x = 20,715,530,451.77
  5. Step 5: Solve for x
    x = 20,715,530,451.77/208,437.01
  6. Step 6: Final answer
    x = 99,385.09

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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.