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Finding the Fourth Proportional to 501,099.60, 751,649.40 and 146,125.20

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Solution

The fourth proportional to 501,099.60, 751,649.40 and 146,125.20 is: 219,187.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,099.60 : 751,649.40 = 146,125.20 : x
  2. Step 2: Convert to fraction form
    501,099.60/751,649.40 = 146,125.20/x
  3. Step 3: Cross multiply
    501,099.60x = 751,649.40 × 146,125.20
  4. Step 4: Simplify right side
    501,099.60x = 109,834,918,904.88
  5. Step 5: Solve for x
    x = 109,834,918,904.88/501,099.60
  6. Step 6: Final answer
    x = 219,187.80

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Similar ratio
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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.