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Finding the Fourth Proportional to 424,717.86, 636,632.54 and 158,362.50

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Solution

The fourth proportional to 424,717.86, 636,632.54 and 158,362.50 is: 237,378.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,717.86 : 636,632.54 = 158,362.50 : x
  2. Step 2: Convert to fraction form
    424,717.86/636,632.54 = 158,362.50/x
  3. Step 3: Cross multiply
    424,717.86x = 636,632.54 × 158,362.50
  4. Step 4: Simplify right side
    424,717.86x = 100,818,720,615.75
  5. Step 5: Solve for x
    x = 100,818,720,615.75/424,717.86
  6. Step 6: Final answer
    x = 237,378.10

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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.