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Finding the Fourth Proportional to 346,798.44, 520,492.91 and 136,584

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Solution

The fourth proportional to 346,798.44, 520,492.91 and 136,584 is: 204,992.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,798.44 : 520,492.91 = 136,584 : x
  2. Step 2: Convert to fraction form
    346,798.44/520,492.91 = 136,584/x
  3. Step 3: Cross multiply
    346,798.44x = 520,492.91 × 136,584
  4. Step 4: Simplify right side
    346,798.44x = 71,091,002,936.52
  5. Step 5: Solve for x
    x = 71,091,002,936.52/346,798.44
  6. Step 6: Final answer
    x = 204,992.28

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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.