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Finding the Fourth Proportional to 339,276.47, 508,139.54 and 161,908.04

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Solution

The fourth proportional to 339,276.47, 508,139.54 and 161,908.04 is: 242,492.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,276.47 : 508,139.54 = 161,908.04 : x
  2. Step 2: Convert to fraction form
    339,276.47/508,139.54 = 161,908.04/x
  3. Step 3: Cross multiply
    339,276.47x = 508,139.54 × 161,908.04
  4. Step 4: Simplify right side
    339,276.47x = 82,271,877,428.71
  5. Step 5: Solve for x
    x = 82,271,877,428.71/339,276.47
  6. Step 6: Final answer
    x = 242,492.14

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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.