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Finding the Fourth Proportional to 251,411.76, 377,117.52 and 73,920.24

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Solution

The fourth proportional to 251,411.76, 377,117.52 and 73,920.24 is: 110,880.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,411.76 : 377,117.52 = 73,920.24 : x
  2. Step 2: Convert to fraction form
    251,411.76/377,117.52 = 73,920.24/x
  3. Step 3: Cross multiply
    251,411.76x = 377,117.52 × 73,920.24
  4. Step 4: Simplify right side
    251,411.76x = 27,876,617,586.60
  5. Step 5: Solve for x
    x = 27,876,617,586.60/251,411.76
  6. Step 6: Final answer
    x = 110,880.32

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1.5x scale

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.