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Finding the Fourth Proportional to 127,013.07, 190,607.09 and 43,907.07

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Solution

The fourth proportional to 127,013.07, 190,607.09 and 43,907.07 is: 65,890.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,013.07 : 190,607.09 = 43,907.07 : x
  2. Step 2: Convert to fraction form
    127,013.07/190,607.09 = 43,907.07/x
  3. Step 3: Cross multiply
    127,013.07x = 190,607.09 × 43,907.07
  4. Step 4: Simplify right side
    127,013.07x = 8,368,998,623.59
  5. Step 5: Solve for x
    x = 8,368,998,623.59/127,013.07
  6. Step 6: Final answer
    x = 65,890.85

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1.5x scale

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.