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Finding the Fourth Proportional to 349,759.68, 524,639.04 and 139,545.24

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Solution

The fourth proportional to 349,759.68, 524,639.04 and 139,545.24 is: 209,317.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,759.68 : 524,639.04 = 139,545.24 : x
  2. Step 2: Convert to fraction form
    349,759.68/524,639.04 = 139,545.24/x
  3. Step 3: Cross multiply
    349,759.68x = 524,639.04 × 139,545.24
  4. Step 4: Simplify right side
    349,759.68x = 73,210,880,750.17
  5. Step 5: Solve for x
    x = 73,210,880,750.17/349,759.68
  6. Step 6: Final answer
    x = 209,317.67

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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.