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Finding the Fourth Proportional to 358,563.60, 537,903.83 and 105,869.64

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Solution

The fourth proportional to 358,563.60, 537,903.83 and 105,869.64 is: 158,821.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,563.60 : 537,903.83 = 105,869.64 : x
  2. Step 2: Convert to fraction form
    358,563.60/537,903.83 = 105,869.64/x
  3. Step 3: Cross multiply
    358,563.60x = 537,903.83 × 105,869.64
  4. Step 4: Simplify right side
    358,563.60x = 56,947,684,307.37
  5. Step 5: Solve for x
    x = 56,947,684,307.37/358,563.60
  6. Step 6: Final answer
    x = 158,821.71

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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.