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Finding the Fourth Proportional to 426,954.48, 640,357.54 and 160,717.08

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Solution

The fourth proportional to 426,954.48, 640,357.54 and 160,717.08 is: 241,047.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,954.48 : 640,357.54 = 160,717.08 : x
  2. Step 2: Convert to fraction form
    426,954.48/640,357.54 = 160,717.08/x
  3. Step 3: Cross multiply
    426,954.48x = 640,357.54 × 160,717.08
  4. Step 4: Simplify right side
    426,954.48x = 102,916,393,984.78
  5. Step 5: Solve for x
    x = 102,916,393,984.78/426,954.48
  6. Step 6: Final answer
    x = 241,047.70

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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.