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Finding the Fourth Proportional to 127,483.64, 191,225.20 and 60,721.28

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Solution

The fourth proportional to 127,483.64, 191,225.20 and 60,721.28 is: 91,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,483.64 : 191,225.20 = 60,721.28 : x
  2. Step 2: Convert to fraction form
    127,483.64/191,225.20 = 60,721.28/x
  3. Step 3: Cross multiply
    127,483.64x = 191,225.20 × 60,721.28
  4. Step 4: Simplify right side
    127,483.64x = 11,611,438,912.26
  5. Step 5: Solve for x
    x = 11,611,438,912.26/127,483.64
  6. Step 6: Final answer
    x = 91,081.80

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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.