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Finding the Fourth Proportional to 291,763.22, 402,640.37 and 162,700.44

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Solution

The fourth proportional to 291,763.22, 402,640.37 and 162,700.44 is: 224,530.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,763.22 : 402,640.37 = 162,700.44 : x
  2. Step 2: Convert to fraction form
    291,763.22/402,640.37 = 162,700.44/x
  3. Step 3: Cross multiply
    291,763.22x = 402,640.37 × 162,700.44
  4. Step 4: Simplify right side
    291,763.22x = 65,509,764,547.26
  5. Step 5: Solve for x
    x = 65,509,764,547.26/291,763.22
  6. Step 6: Final answer
    x = 224,530.58

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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.