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Finding the Fourth Proportional to 545,191.92, 817,554.60 and 190,100.88

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Solution

The fourth proportional to 545,191.92, 817,554.60 and 190,100.88 is: 285,069.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,191.92 : 817,554.60 = 190,100.88 : x
  2. Step 2: Convert to fraction form
    545,191.92/817,554.60 = 190,100.88/x
  3. Step 3: Cross multiply
    545,191.92x = 817,554.60 × 190,100.88
  4. Step 4: Simplify right side
    545,191.92x = 155,417,848,908.05
  5. Step 5: Solve for x
    x = 155,417,848,908.05/545,191.92
  6. Step 6: Final answer
    x = 285,069.98

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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.