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Finding the Fourth Proportional to 268,465.80, 402,237.90 and 174,923.40

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Solution

The fourth proportional to 268,465.80, 402,237.90 and 174,923.40 is: 262,084.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,465.80 : 402,237.90 = 174,923.40 : x
  2. Step 2: Convert to fraction form
    268,465.80/402,237.90 = 174,923.40/x
  3. Step 3: Cross multiply
    268,465.80x = 402,237.90 × 174,923.40
  4. Step 4: Simplify right side
    268,465.80x = 70,360,821,076.86
  5. Step 5: Solve for x
    x = 70,360,821,076.86/268,465.80
  6. Step 6: Final answer
    x = 262,084.86

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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.