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Finding the Fourth Proportional to 191,907.90, 264,941.11 and 133,077.60

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Solution

The fourth proportional to 191,907.90, 264,941.11 and 133,077.60 is: 183,722.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,907.90 : 264,941.11 = 133,077.60 : x
  2. Step 2: Convert to fraction form
    191,907.90/264,941.11 = 133,077.60/x
  3. Step 3: Cross multiply
    191,907.90x = 264,941.11 × 133,077.60
  4. Step 4: Simplify right side
    191,907.90x = 35,257,727,060.14
  5. Step 5: Solve for x
    x = 35,257,727,060.14/191,907.90
  6. Step 6: Final answer
    x = 183,722.12

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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.