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Finding the Fourth Proportional to 326,120.99, 450,051.57 and 197,041.50

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Solution

The fourth proportional to 326,120.99, 450,051.57 and 197,041.50 is: 271,920.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,120.99 : 450,051.57 = 197,041.50 : x
  2. Step 2: Convert to fraction form
    326,120.99/450,051.57 = 197,041.50/x
  3. Step 3: Cross multiply
    326,120.99x = 450,051.57 × 197,041.50
  4. Step 4: Simplify right side
    326,120.99x = 88,678,835,444.95
  5. Step 5: Solve for x
    x = 88,678,835,444.95/326,120.99
  6. Step 6: Final answer
    x = 271,920.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.