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Finding the Fourth Proportional to 223,390.70, 335,053.65 and 65,602.70

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Solution

The fourth proportional to 223,390.70, 335,053.65 and 65,602.70 is: 98,394.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,390.70 : 335,053.65 = 65,602.70 : x
  2. Step 2: Convert to fraction form
    223,390.70/335,053.65 = 65,602.70/x
  3. Step 3: Cross multiply
    223,390.70x = 335,053.65 × 65,602.70
  4. Step 4: Simplify right side
    223,390.70x = 21,980,424,084.86
  5. Step 5: Solve for x
    x = 21,980,424,084.86/223,390.70
  6. Step 6: Final answer
    x = 98,394.54

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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.