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Finding the Fourth Proportional to 188,223.24, 259,748.58 and 103,345.80

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Solution

The fourth proportional to 188,223.24, 259,748.58 and 103,345.80 is: 142,617.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,223.24 : 259,748.58 = 103,345.80 : x
  2. Step 2: Convert to fraction form
    188,223.24/259,748.58 = 103,345.80/x
  3. Step 3: Cross multiply
    188,223.24x = 259,748.58 × 103,345.80
  4. Step 4: Simplify right side
    188,223.24x = 26,843,924,798.96
  5. Step 5: Solve for x
    x = 26,843,924,798.96/188,223.24
  6. Step 6: Final answer
    x = 142,617.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.