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Finding the Fourth Proportional to 98,698.20, 148,004.10 and 39,514.20

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Solution

The fourth proportional to 98,698.20, 148,004.10 and 39,514.20 is: 59,254.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,698.20 : 148,004.10 = 39,514.20 : x
  2. Step 2: Convert to fraction form
    98,698.20/148,004.10 = 39,514.20/x
  3. Step 3: Cross multiply
    98,698.20x = 148,004.10 × 39,514.20
  4. Step 4: Simplify right side
    98,698.20x = 5,848,263,608.22
  5. Step 5: Solve for x
    x = 5,848,263,608.22/98,698.20
  6. Step 6: Final answer
    x = 59,254.00

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1.5x scale

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.