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Finding the Fourth Proportional to 176,886.40, 264,940.80 and 157,187.20

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Solution

The fourth proportional to 176,886.40, 264,940.80 and 157,187.20 is: 235,435.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,886.40 : 264,940.80 = 157,187.20 : x
  2. Step 2: Convert to fraction form
    176,886.40/264,940.80 = 157,187.20/x
  3. Step 3: Cross multiply
    176,886.40x = 264,940.80 × 157,187.20
  4. Step 4: Simplify right side
    176,886.40x = 41,645,302,517.76
  5. Step 5: Solve for x
    x = 41,645,302,517.76/176,886.40
  6. Step 6: Final answer
    x = 235,435.30

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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.