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Finding the Fourth Proportional to 346,656.80, 520,060.80 and 196,968.80

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Solution

The fourth proportional to 346,656.80, 520,060.80 and 196,968.80 is: 295,496.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,656.80 : 520,060.80 = 196,968.80 : x
  2. Step 2: Convert to fraction form
    346,656.80/520,060.80 = 196,968.80/x
  3. Step 3: Cross multiply
    346,656.80x = 520,060.80 × 196,968.80
  4. Step 4: Simplify right side
    346,656.80x = 102,435,751,703.04
  5. Step 5: Solve for x
    x = 102,435,751,703.04/346,656.80
  6. Step 6: Final answer
    x = 295,496.16

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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.