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Finding the Fourth Proportional to 177,071.20, 265,606.80 and 163,657.60

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Solution

The fourth proportional to 177,071.20, 265,606.80 and 163,657.60 is: 245,486.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,071.20 : 265,606.80 = 163,657.60 : x
  2. Step 2: Convert to fraction form
    177,071.20/265,606.80 = 163,657.60/x
  3. Step 3: Cross multiply
    177,071.20x = 265,606.80 × 163,657.60
  4. Step 4: Simplify right side
    177,071.20x = 43,468,571,431.68
  5. Step 5: Solve for x
    x = 43,468,571,431.68/177,071.20
  6. Step 6: Final answer
    x = 245,486.40

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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.