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Finding the Fourth Proportional to 223,330.68, 335,030.04 and 139,022.64

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Solution

The fourth proportional to 223,330.68, 335,030.04 and 139,022.64 is: 208,555.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,330.68 : 335,030.04 = 139,022.64 : x
  2. Step 2: Convert to fraction form
    223,330.68/335,030.04 = 139,022.64/x
  3. Step 3: Cross multiply
    223,330.68x = 335,030.04 × 139,022.64
  4. Step 4: Simplify right side
    223,330.68x = 46,576,760,640.11
  5. Step 5: Solve for x
    x = 46,576,760,640.11/223,330.68
  6. Step 6: Final answer
    x = 208,555.14

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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.