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Finding the Fourth Proportional to 346,064.70, 519,097.05 and 109,479.90

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Solution

The fourth proportional to 346,064.70, 519,097.05 and 109,479.90 is: 164,219.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,064.70 : 519,097.05 = 109,479.90 : x
  2. Step 2: Convert to fraction form
    346,064.70/519,097.05 = 109,479.90/x
  3. Step 3: Cross multiply
    346,064.70x = 519,097.05 × 109,479.90
  4. Step 4: Simplify right side
    346,064.70x = 56,830,693,124.30
  5. Step 5: Solve for x
    x = 56,830,693,124.30/346,064.70
  6. Step 6: Final answer
    x = 164,219.85

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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.