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Finding the Fourth Proportional to 323,733.15, 485,655.21 and 99,088.02

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Solution

The fourth proportional to 323,733.15, 485,655.21 and 99,088.02 is: 148,649.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,733.15 : 485,655.21 = 99,088.02 : x
  2. Step 2: Convert to fraction form
    323,733.15/485,655.21 = 99,088.02/x
  3. Step 3: Cross multiply
    323,733.15x = 485,655.21 × 99,088.02
  4. Step 4: Simplify right side
    323,733.15x = 48,122,613,161.58
  5. Step 5: Solve for x
    x = 48,122,613,161.58/323,733.15
  6. Step 6: Final answer
    x = 148,649.01

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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.