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Finding the Fourth Proportional to 127,005.57, 190,595.84 and 43,899.57

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Solution

The fourth proportional to 127,005.57, 190,595.84 and 43,899.57 is: 65,879.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,005.57 : 190,595.84 = 43,899.57 : x
  2. Step 2: Convert to fraction form
    127,005.57/190,595.84 = 43,899.57/x
  3. Step 3: Cross multiply
    127,005.57x = 190,595.84 × 43,899.57
  4. Step 4: Simplify right side
    127,005.57x = 8,367,075,200.29
  5. Step 5: Solve for x
    x = 8,367,075,200.29/127,005.57
  6. Step 6: Final answer
    x = 65,879.59

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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.