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Finding the Fourth Proportional to 306,572.50, 459,884.67 and 84,956.50

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Solution

The fourth proportional to 306,572.50, 459,884.67 and 84,956.50 is: 127,441.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,572.50 : 459,884.67 = 84,956.50 : x
  2. Step 2: Convert to fraction form
    306,572.50/459,884.67 = 84,956.50/x
  3. Step 3: Cross multiply
    306,572.50x = 459,884.67 × 84,956.50
  4. Step 4: Simplify right side
    306,572.50x = 39,070,191,966.86
  5. Step 5: Solve for x
    x = 39,070,191,966.86/306,572.50
  6. Step 6: Final answer
    x = 127,441.93

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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.