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Finding the Fourth Proportional to 339,783.55, 468,902.50 and 186,831.36

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Solution

The fourth proportional to 339,783.55, 468,902.50 and 186,831.36 is: 257,827.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,783.55 : 468,902.50 = 186,831.36 : x
  2. Step 2: Convert to fraction form
    339,783.55/468,902.50 = 186,831.36/x
  3. Step 3: Cross multiply
    339,783.55x = 468,902.50 × 186,831.36
  4. Step 4: Simplify right side
    339,783.55x = 87,605,689,437.89
  5. Step 5: Solve for x
    x = 87,605,689,437.89/339,783.55
  6. Step 6: Final answer
    x = 257,827.93

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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.