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Finding the Fourth Proportional to 358,508.53, 537,762.80 and 109,190.53

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Solution

The fourth proportional to 358,508.53, 537,762.80 and 109,190.53 is: 163,785.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,508.53 : 537,762.80 = 109,190.53 : x
  2. Step 2: Convert to fraction form
    358,508.53/537,762.80 = 109,190.53/x
  3. Step 3: Cross multiply
    358,508.53x = 537,762.80 × 109,190.53
  4. Step 4: Simplify right side
    358,508.53x = 58,718,605,477.27
  5. Step 5: Solve for x
    x = 58,718,605,477.27/358,508.53
  6. Step 6: Final answer
    x = 163,785.80

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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.