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Finding the Fourth Proportional to 346,348.40, 519,519.01 and 109,691.06

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Solution

The fourth proportional to 346,348.40, 519,519.01 and 109,691.06 is: 164,535.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,348.40 : 519,519.01 = 109,691.06 : x
  2. Step 2: Convert to fraction form
    346,348.40/519,519.01 = 109,691.06/x
  3. Step 3: Cross multiply
    346,348.40x = 519,519.01 × 109,691.06
  4. Step 4: Simplify right side
    346,348.40x = 56,986,587,751.00
  5. Step 5: Solve for x
    x = 56,986,587,751.00/346,348.40
  6. Step 6: Final answer
    x = 164,535.44

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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.