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Finding the Fourth Proportional to 309,572.99, 464,328.38 and 84,956.04

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Solution

The fourth proportional to 309,572.99, 464,328.38 and 84,956.04 is: 127,425.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,572.99 : 464,328.38 = 84,956.04 : x
  2. Step 2: Convert to fraction form
    309,572.99/464,328.38 = 84,956.04/x
  3. Step 3: Cross multiply
    309,572.99x = 464,328.38 × 84,956.04
  4. Step 4: Simplify right side
    309,572.99x = 39,447,500,636.81
  5. Step 5: Solve for x
    x = 39,447,500,636.81/309,572.99
  6. Step 6: Final answer
    x = 127,425.53

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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.