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Finding the Fourth Proportional to 97,252.88, 145,879.32 and 30,698.20

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Solution

The fourth proportional to 97,252.88, 145,879.32 and 30,698.20 is: 46,047.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,252.88 : 145,879.32 = 30,698.20 : x
  2. Step 2: Convert to fraction form
    97,252.88/145,879.32 = 30,698.20/x
  3. Step 3: Cross multiply
    97,252.88x = 145,879.32 × 30,698.20
  4. Step 4: Simplify right side
    97,252.88x = 4,478,232,541.22
  5. Step 5: Solve for x
    x = 4,478,232,541.22/97,252.88
  6. Step 6: Final answer
    x = 46,047.30

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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.