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Finding the Fourth Proportional to 358,491.60, 537,737.40 and 122,101.20

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Solution

The fourth proportional to 358,491.60, 537,737.40 and 122,101.20 is: 183,151.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,491.60 : 537,737.40 = 122,101.20 : x
  2. Step 2: Convert to fraction form
    358,491.60/537,737.40 = 122,101.20/x
  3. Step 3: Cross multiply
    358,491.60x = 537,737.40 × 122,101.20
  4. Step 4: Simplify right side
    358,491.60x = 65,658,381,824.88
  5. Step 5: Solve for x
    x = 65,658,381,824.88/358,491.60
  6. Step 6: Final answer
    x = 183,151.80

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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.