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Finding the Fourth Proportional to 346,696.90, 520,045.35 and 169,317.70

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Solution

The fourth proportional to 346,696.90, 520,045.35 and 169,317.70 is: 253,976.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,696.90 : 520,045.35 = 169,317.70 : x
  2. Step 2: Convert to fraction form
    346,696.90/520,045.35 = 169,317.70/x
  3. Step 3: Cross multiply
    346,696.90x = 520,045.35 × 169,317.70
  4. Step 4: Simplify right side
    346,696.90x = 88,052,882,557.70
  5. Step 5: Solve for x
    x = 88,052,882,557.70/346,696.90
  6. Step 6: Final answer
    x = 253,976.55

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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.