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Finding the Fourth Proportional to 224,835.68, 310,263.72 and 122,858.72

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Solution

The fourth proportional to 224,835.68, 310,263.72 and 122,858.72 is: 169,539.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,835.68 : 310,263.72 = 122,858.72 : x
  2. Step 2: Convert to fraction form
    224,835.68/310,263.72 = 122,858.72/x
  3. Step 3: Cross multiply
    224,835.68x = 310,263.72 × 122,858.72
  4. Step 4: Simplify right side
    224,835.68x = 38,118,603,501.64
  5. Step 5: Solve for x
    x = 38,118,603,501.64/224,835.68
  6. Step 6: Final answer
    x = 169,539.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.