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Finding the Fourth Proportional to 350,075.70, 524,919.15 and 139,475.70

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Solution

The fourth proportional to 350,075.70, 524,919.15 and 139,475.70 is: 209,136.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,075.70 : 524,919.15 = 139,475.70 : x
  2. Step 2: Convert to fraction form
    350,075.70/524,919.15 = 139,475.70/x
  3. Step 3: Cross multiply
    350,075.70x = 524,919.15 × 139,475.70
  4. Step 4: Simplify right side
    350,075.70x = 73,213,465,889.66
  5. Step 5: Solve for x
    x = 73,213,465,889.66/350,075.70
  6. Step 6: Final answer
    x = 209,136.10

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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.