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Finding the Fourth Proportional to 223,465.40, 335,206.20 and 65,709.80

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Solution

The fourth proportional to 223,465.40, 335,206.20 and 65,709.80 is: 98,567.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,465.40 : 335,206.20 = 65,709.80 : x
  2. Step 2: Convert to fraction form
    223,465.40/335,206.20 = 65,709.80/x
  3. Step 3: Cross multiply
    223,465.40x = 335,206.20 × 65,709.80
  4. Step 4: Simplify right side
    223,465.40x = 22,026,332,360.76
  5. Step 5: Solve for x
    x = 22,026,332,360.76/223,465.40
  6. Step 6: Final answer
    x = 98,567.08

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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.