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Finding the Fourth Proportional to 352,483.48, 528,292.18 and 139,037.14

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Solution

The fourth proportional to 352,483.48, 528,292.18 and 139,037.14 is: 208,384.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,483.48 : 528,292.18 = 139,037.14 : x
  2. Step 2: Convert to fraction form
    352,483.48/528,292.18 = 139,037.14/x
  3. Step 3: Cross multiply
    352,483.48x = 528,292.18 × 139,037.14
  4. Step 4: Simplify right side
    352,483.48x = 73,452,233,791.57
  5. Step 5: Solve for x
    x = 73,452,233,791.57/352,483.48
  6. Step 6: Final answer
    x = 208,384.90

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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.