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Finding the Fourth Proportional to 389,295.81, 584,030.23 and 119,461.48

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Solution

The fourth proportional to 389,295.81, 584,030.23 and 119,461.48 is: 179,218.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,295.81 : 584,030.23 = 119,461.48 : x
  2. Step 2: Convert to fraction form
    389,295.81/584,030.23 = 119,461.48/x
  3. Step 3: Cross multiply
    389,295.81x = 584,030.23 × 119,461.48
  4. Step 4: Simplify right side
    389,295.81x = 69,769,113,881.81
  5. Step 5: Solve for x
    x = 69,769,113,881.81/389,295.81
  6. Step 6: Final answer
    x = 179,218.76

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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.