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Finding the Fourth Proportional to 224,406.12, 336,350.64 and 91,140

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Solution

The fourth proportional to 224,406.12, 336,350.64 and 91,140 is: 136,605.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,406.12 : 336,350.64 = 91,140 : x
  2. Step 2: Convert to fraction form
    224,406.12/336,350.64 = 91,140/x
  3. Step 3: Cross multiply
    224,406.12x = 336,350.64 × 91,140
  4. Step 4: Simplify right side
    224,406.12x = 30,654,997,329.60
  5. Step 5: Solve for x
    x = 30,654,997,329.60/224,406.12
  6. Step 6: Final answer
    x = 136,605.00

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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.