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Finding the Fourth Proportional to 191,084.89, 263,700.50 and 105,047.50

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Solution

The fourth proportional to 191,084.89, 263,700.50 and 105,047.50 is: 144,967.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,084.89 : 263,700.50 = 105,047.50 : x
  2. Step 2: Convert to fraction form
    191,084.89/263,700.50 = 105,047.50/x
  3. Step 3: Cross multiply
    191,084.89x = 263,700.50 × 105,047.50
  4. Step 4: Simplify right side
    191,084.89x = 27,701,078,273.75
  5. Step 5: Solve for x
    x = 27,701,078,273.75/191,084.89
  6. Step 6: Final answer
    x = 144,967.39

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1.5x scale

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.