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Finding the Fourth Proportional to 146,999.70, 219,916.35 and 127,494.90

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Solution

The fourth proportional to 146,999.70, 219,916.35 and 127,494.90 is: 190,736.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,999.70 : 219,916.35 = 127,494.90 : x
  2. Step 2: Convert to fraction form
    146,999.70/219,916.35 = 127,494.90/x
  3. Step 3: Cross multiply
    146,999.70x = 219,916.35 × 127,494.90
  4. Step 4: Simplify right side
    146,999.70x = 28,038,213,051.62
  5. Step 5: Solve for x
    x = 28,038,213,051.62/146,999.70
  6. Step 6: Final answer
    x = 190,736.53

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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.