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Finding the Fourth Proportional to 278,307.54, 383,923.53 and 176,161.68

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Solution

The fourth proportional to 278,307.54, 383,923.53 and 176,161.68 is: 243,013.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,307.54 : 383,923.53 = 176,161.68 : x
  2. Step 2: Convert to fraction form
    278,307.54/383,923.53 = 176,161.68/x
  3. Step 3: Cross multiply
    278,307.54x = 383,923.53 × 176,161.68
  4. Step 4: Simplify right side
    278,307.54x = 67,632,614,036.33
  5. Step 5: Solve for x
    x = 67,632,614,036.33/278,307.54
  6. Step 6: Final answer
    x = 243,013.95

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1.5x scale

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.