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Finding the Fourth Proportional to 575,965.81, 863,850.30 and 155,143.27

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Solution

The fourth proportional to 575,965.81, 863,850.30 and 155,143.27 is: 232,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,965.81 : 863,850.30 = 155,143.27 : x
  2. Step 2: Convert to fraction form
    575,965.81/863,850.30 = 155,143.27/x
  3. Step 3: Cross multiply
    575,965.81x = 863,850.30 × 155,143.27
  4. Step 4: Simplify right side
    575,965.81x = 134,020,560,332.48
  5. Step 5: Solve for x
    x = 134,020,560,332.48/575,965.81
  6. Step 6: Final answer
    x = 232,688.40

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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.