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Finding the Fourth Proportional to 390,013.50, 585,020.26 and 94,525.50

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Solution

The fourth proportional to 390,013.50, 585,020.26 and 94,525.50 is: 141,788.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,013.50 : 585,020.26 = 94,525.50 : x
  2. Step 2: Convert to fraction form
    390,013.50/585,020.26 = 94,525.50/x
  3. Step 3: Cross multiply
    390,013.50x = 585,020.26 × 94,525.50
  4. Step 4: Simplify right side
    390,013.50x = 55,299,332,586.63
  5. Step 5: Solve for x
    x = 55,299,332,586.63/390,013.50
  6. Step 6: Final answer
    x = 141,788.25

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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.