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Finding the Fourth Proportional to 291,751.56, 402,624.27 and 162,688.77

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Solution

The fourth proportional to 291,751.56, 402,624.27 and 162,688.77 is: 224,514.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,751.56 : 402,624.27 = 162,688.77 : x
  2. Step 2: Convert to fraction form
    291,751.56/402,624.27 = 162,688.77/x
  3. Step 3: Cross multiply
    291,751.56x = 402,624.27 × 162,688.77
  4. Step 4: Simplify right side
    291,751.56x = 65,502,448,107.73
  5. Step 5: Solve for x
    x = 65,502,448,107.73/291,751.56
  6. Step 6: Final answer
    x = 224,514.48

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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.