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Finding the Fourth Proportional to 350,065.65, 525,191.92 and 125,448.79

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Solution

The fourth proportional to 350,065.65, 525,191.92 and 125,448.79 is: 188,206.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,065.65 : 525,191.92 = 125,448.79 : x
  2. Step 2: Convert to fraction form
    350,065.65/525,191.92 = 125,448.79/x
  3. Step 3: Cross multiply
    350,065.65x = 525,191.92 × 125,448.79
  4. Step 4: Simplify right side
    350,065.65x = 65,884,690,802.05
  5. Step 5: Solve for x
    x = 65,884,690,802.05/350,065.65
  6. Step 6: Final answer
    x = 188,206.67

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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.