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Finding the Fourth Proportional to 299,157.02, 448,483.88 and 139,151.66

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Solution

The fourth proportional to 299,157.02, 448,483.88 and 139,151.66 is: 208,610.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,157.02 : 448,483.88 = 139,151.66 : x
  2. Step 2: Convert to fraction form
    299,157.02/448,483.88 = 139,151.66/x
  3. Step 3: Cross multiply
    299,157.02x = 448,483.88 × 139,151.66
  4. Step 4: Simplify right side
    299,157.02x = 62,407,276,385.24
  5. Step 5: Solve for x
    x = 62,407,276,385.24/299,157.02
  6. Step 6: Final answer
    x = 208,610.44

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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.