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Finding the Fourth Proportional to 348,522.61, 522,838.62 and 148,844.02

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Solution

The fourth proportional to 348,522.61, 522,838.62 and 148,844.02 is: 223,289.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,522.61 : 522,838.62 = 148,844.02 : x
  2. Step 2: Convert to fraction form
    348,522.61/522,838.62 = 148,844.02/x
  3. Step 3: Cross multiply
    348,522.61x = 522,838.62 × 148,844.02
  4. Step 4: Simplify right side
    348,522.61x = 77,821,402,012.05
  5. Step 5: Solve for x
    x = 77,821,402,012.05/348,522.61
  6. Step 6: Final answer
    x = 223,289.39

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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.