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Finding the Fourth Proportional to 223,373.90, 335,123.40 and 90,347.60

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Solution

The fourth proportional to 223,373.90, 335,123.40 and 90,347.60 is: 135,546.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,373.90 : 335,123.40 = 90,347.60 : x
  2. Step 2: Convert to fraction form
    223,373.90/335,123.40 = 90,347.60/x
  3. Step 3: Cross multiply
    223,373.90x = 335,123.40 × 90,347.60
  4. Step 4: Simplify right side
    223,373.90x = 30,277,594,893.84
  5. Step 5: Solve for x
    x = 30,277,594,893.84/223,373.90
  6. Step 6: Final answer
    x = 135,546.70

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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.