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Finding the Fourth Proportional to 329,088.60, 493,244.10 and 139,548.60

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Solution

The fourth proportional to 329,088.60, 493,244.10 and 139,548.60 is: 209,158.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,088.60 : 493,244.10 = 139,548.60 : x
  2. Step 2: Convert to fraction form
    329,088.60/493,244.10 = 139,548.60/x
  3. Step 3: Cross multiply
    329,088.60x = 493,244.10 × 139,548.60
  4. Step 4: Simplify right side
    329,088.60x = 68,831,523,613.26
  5. Step 5: Solve for x
    x = 68,831,523,613.26/329,088.60
  6. Step 6: Final answer
    x = 209,158.03

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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.