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Finding the Fourth Proportional to 346,694.81, 478,429.68 and 193,734.26

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Solution

The fourth proportional to 346,694.81, 478,429.68 and 193,734.26 is: 267,348.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,694.81 : 478,429.68 = 193,734.26 : x
  2. Step 2: Convert to fraction form
    346,694.81/478,429.68 = 193,734.26/x
  3. Step 3: Cross multiply
    346,694.81x = 478,429.68 × 193,734.26
  4. Step 4: Simplify right side
    346,694.81x = 92,688,221,691.06
  5. Step 5: Solve for x
    x = 92,688,221,691.06/346,694.81
  6. Step 6: Final answer
    x = 267,348.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.