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Finding the Fourth Proportional to 115,328.61, 173,018.03 and 35,366.63

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Solution

The fourth proportional to 115,328.61, 173,018.03 and 35,366.63 is: 53,057.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,328.61 : 173,018.03 = 35,366.63 : x
  2. Step 2: Convert to fraction form
    115,328.61/173,018.03 = 35,366.63/x
  3. Step 3: Cross multiply
    115,328.61x = 173,018.03 × 35,366.63
  4. Step 4: Simplify right side
    115,328.61x = 6,119,063,608.42
  5. Step 5: Solve for x
    x = 6,119,063,608.42/115,328.61
  6. Step 6: Final answer
    x = 53,057.64

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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.