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Finding the Fourth Proportional to 263,412.76, 363,509.67 and 142,554.10

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Solution

The fourth proportional to 263,412.76, 363,509.67 and 142,554.10 is: 196,724.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,412.76 : 363,509.67 = 142,554.10 : x
  2. Step 2: Convert to fraction form
    263,412.76/363,509.67 = 142,554.10/x
  3. Step 3: Cross multiply
    263,412.76x = 363,509.67 × 142,554.10
  4. Step 4: Simplify right side
    263,412.76x = 51,819,793,848.15
  5. Step 5: Solve for x
    x = 51,819,793,848.15/263,412.76
  6. Step 6: Final answer
    x = 196,724.69

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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.