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Finding the Fourth Proportional to 134,818.50, 186,049.53 and 75,202.50

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Solution

The fourth proportional to 134,818.50, 186,049.53 and 75,202.50 is: 103,779.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,818.50 : 186,049.53 = 75,202.50 : x
  2. Step 2: Convert to fraction form
    134,818.50/186,049.53 = 75,202.50/x
  3. Step 3: Cross multiply
    134,818.50x = 186,049.53 × 75,202.50
  4. Step 4: Simplify right side
    134,818.50x = 13,991,389,779.83
  5. Step 5: Solve for x
    x = 13,991,389,779.83/134,818.50
  6. Step 6: Final answer
    x = 103,779.45

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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.