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Finding the Fourth Proportional to 223,403.92, 308,369.28 and 143,047.96

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Solution

The fourth proportional to 223,403.92, 308,369.28 and 143,047.96 is: 197,452.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,403.92 : 308,369.28 = 143,047.96 : x
  2. Step 2: Convert to fraction form
    223,403.92/308,369.28 = 143,047.96/x
  3. Step 3: Cross multiply
    223,403.92x = 308,369.28 × 143,047.96
  4. Step 4: Simplify right side
    223,403.92x = 44,111,596,430.67
  5. Step 5: Solve for x
    x = 44,111,596,430.67/223,403.92
  6. Step 6: Final answer
    x = 197,452.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.