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Finding the Fourth Proportional to 210,592.60, 290,618.54 and 115,099.33

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Solution

The fourth proportional to 210,592.60, 290,618.54 and 115,099.33 is: 158,837.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,592.60 : 290,618.54 = 115,099.33 : x
  2. Step 2: Convert to fraction form
    210,592.60/290,618.54 = 115,099.33/x
  3. Step 3: Cross multiply
    210,592.60x = 290,618.54 × 115,099.33
  4. Step 4: Simplify right side
    210,592.60x = 33,449,999,239.58
  5. Step 5: Solve for x
    x = 33,449,999,239.58/210,592.60
  6. Step 6: Final answer
    x = 158,837.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.