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Finding the Fourth Proportional to 323,549.64, 485,325.74 and 98,909.24

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Solution

The fourth proportional to 323,549.64, 485,325.74 and 98,909.24 is: 148,364.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,549.64 : 485,325.74 = 98,909.24 : x
  2. Step 2: Convert to fraction form
    323,549.64/485,325.74 = 98,909.24/x
  3. Step 3: Cross multiply
    323,549.64x = 485,325.74 × 98,909.24
  4. Step 4: Simplify right side
    323,549.64x = 48,003,200,095.84
  5. Step 5: Solve for x
    x = 48,003,200,095.84/323,549.64
  6. Step 6: Final answer
    x = 148,364.25

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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.