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Finding the Fourth Proportional to 355,165.50, 532,840.60 and 105,847.50

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Solution

The fourth proportional to 355,165.50, 532,840.60 and 105,847.50 is: 158,798.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,165.50 : 532,840.60 = 105,847.50 : x
  2. Step 2: Convert to fraction form
    355,165.50/532,840.60 = 105,847.50/x
  3. Step 3: Cross multiply
    355,165.50x = 532,840.60 × 105,847.50
  4. Step 4: Simplify right side
    355,165.50x = 56,399,845,408.50
  5. Step 5: Solve for x
    x = 56,399,845,408.50/355,165.50
  6. Step 6: Final answer
    x = 158,798.77

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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.