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Finding the Fourth Proportional to 354,506.74, 531,316.63 and 177,063.28

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Solution

The fourth proportional to 354,506.74, 531,316.63 and 177,063.28 is: 265,373.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,506.74 : 531,316.63 = 177,063.28 : x
  2. Step 2: Convert to fraction form
    354,506.74/531,316.63 = 177,063.28/x
  3. Step 3: Cross multiply
    354,506.74x = 531,316.63 × 177,063.28
  4. Step 4: Simplify right side
    354,506.74x = 94,076,664,119.38
  5. Step 5: Solve for x
    x = 94,076,664,119.38/354,506.74
  6. Step 6: Final answer
    x = 265,373.42

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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.