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Finding the Fourth Proportional to 354,568.34, 489,303.63 and 193,423.34

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Solution

The fourth proportional to 354,568.34, 489,303.63 and 193,423.34 is: 266,923.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,568.34 : 489,303.63 = 193,423.34 : x
  2. Step 2: Convert to fraction form
    354,568.34/489,303.63 = 193,423.34/x
  3. Step 3: Cross multiply
    354,568.34x = 489,303.63 × 193,423.34
  4. Step 4: Simplify right side
    354,568.34x = 94,642,742,388.72
  5. Step 5: Solve for x
    x = 94,642,742,388.72/354,568.34
  6. Step 6: Final answer
    x = 266,923.84

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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.