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Finding the Fourth Proportional to 326,655.99, 490,110.75 and 127,116.54

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Solution

The fourth proportional to 326,655.99, 490,110.75 and 127,116.54 is: 190,724.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,655.99 : 490,110.75 = 127,116.54 : x
  2. Step 2: Convert to fraction form
    326,655.99/490,110.75 = 127,116.54/x
  3. Step 3: Cross multiply
    326,655.99x = 490,110.75 × 127,116.54
  4. Step 4: Simplify right side
    326,655.99x = 62,301,182,756.81
  5. Step 5: Solve for x
    x = 62,301,182,756.81/326,655.99
  6. Step 6: Final answer
    x = 190,724.14

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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.