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Finding the Fourth Proportional to 249,222.99, 343,923.32 and 141,790.71

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Solution

The fourth proportional to 249,222.99, 343,923.32 and 141,790.71 is: 195,668.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,222.99 : 343,923.32 = 141,790.71 : x
  2. Step 2: Convert to fraction form
    249,222.99/343,923.32 = 141,790.71/x
  3. Step 3: Cross multiply
    249,222.99x = 343,923.32 × 141,790.71
  4. Step 4: Simplify right side
    249,222.99x = 48,765,131,728.36
  5. Step 5: Solve for x
    x = 48,765,131,728.36/249,222.99
  6. Step 6: Final answer
    x = 195,668.67

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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.