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Finding the Fourth Proportional to 163,855.71, 245,783.45 and 45,527.00

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Solution

The fourth proportional to 163,855.71, 245,783.45 and 45,527.00 is: 68,290.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,855.71 : 245,783.45 = 45,527.00 : x
  2. Step 2: Convert to fraction form
    163,855.71/245,783.45 = 45,527.00/x
  3. Step 3: Cross multiply
    163,855.71x = 245,783.45 × 45,527.00
  4. Step 4: Simplify right side
    163,855.71x = 11,189,782,013.05
  5. Step 5: Solve for x
    x = 11,189,782,013.05/163,855.71
  6. Step 6: Final answer
    x = 68,290.46

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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.