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Finding the Fourth Proportional to 346,652.63, 519,913.18 and 168,980.95

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Solution

The fourth proportional to 346,652.63, 519,913.18 and 168,980.95 is: 253,439.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,652.63 : 519,913.18 = 168,980.95 : x
  2. Step 2: Convert to fraction form
    346,652.63/519,913.18 = 168,980.95/x
  3. Step 3: Cross multiply
    346,652.63x = 519,913.18 × 168,980.95
  4. Step 4: Simplify right side
    346,652.63x = 87,855,420,051.90
  5. Step 5: Solve for x
    x = 87,855,420,051.90/346,652.63
  6. Step 6: Final answer
    x = 253,439.36

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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.