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Finding the Fourth Proportional to 127,805.60, 191,577.12 and 57,733.76

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Solution

The fourth proportional to 127,805.60, 191,577.12 and 57,733.76 is: 86,541.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,805.60 : 191,577.12 = 57,733.76 : x
  2. Step 2: Convert to fraction form
    127,805.60/191,577.12 = 57,733.76/x
  3. Step 3: Cross multiply
    127,805.60x = 191,577.12 × 57,733.76
  4. Step 4: Simplify right side
    127,805.60x = 11,060,467,467.57
  5. Step 5: Solve for x
    x = 11,060,467,467.57/127,805.60
  6. Step 6: Final answer
    x = 86,541.34

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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.