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Finding the Fourth Proportional to 283,269.48, 390,896.64 and 162,404.88

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Solution

The fourth proportional to 283,269.48, 390,896.64 and 162,404.88 is: 224,110.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,269.48 : 390,896.64 = 162,404.88 : x
  2. Step 2: Convert to fraction form
    283,269.48/390,896.64 = 162,404.88/x
  3. Step 3: Cross multiply
    283,269.48x = 390,896.64 × 162,404.88
  4. Step 4: Simplify right side
    283,269.48x = 63,483,521,911.60
  5. Step 5: Solve for x
    x = 63,483,521,911.60/283,269.48
  6. Step 6: Final answer
    x = 224,110.00

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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.