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Finding the Fourth Proportional to 223,359.30, 335,055.15 and 134,421.30

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Solution

The fourth proportional to 223,359.30, 335,055.15 and 134,421.30 is: 201,641.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,359.30 : 335,055.15 = 134,421.30 : x
  2. Step 2: Convert to fraction form
    223,359.30/335,055.15 = 134,421.30/x
  3. Step 3: Cross multiply
    223,359.30x = 335,055.15 × 134,421.30
  4. Step 4: Simplify right side
    223,359.30x = 45,038,548,834.70
  5. Step 5: Solve for x
    x = 45,038,548,834.70/223,359.30
  6. Step 6: Final answer
    x = 201,641.70

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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.