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Finding the Fourth Proportional to 260,041.59, 390,075.75 and 73,067.67

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Solution

The fourth proportional to 260,041.59, 390,075.75 and 73,067.67 is: 109,605.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,041.59 : 390,075.75 = 73,067.67 : x
  2. Step 2: Convert to fraction form
    260,041.59/390,075.75 = 73,067.67/x
  3. Step 3: Cross multiply
    260,041.59x = 390,075.75 × 73,067.67
  4. Step 4: Simplify right side
    260,041.59x = 28,501,926,176.00
  5. Step 5: Solve for x
    x = 28,501,926,176.00/260,041.59
  6. Step 6: Final answer
    x = 109,605.26

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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.