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Finding the Fourth Proportional to 103,852.75, 155,765.25 and 28,966.63

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Solution

The fourth proportional to 103,852.75, 155,765.25 and 28,966.63 is: 43,446.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,852.75 : 155,765.25 = 28,966.63 : x
  2. Step 2: Convert to fraction form
    103,852.75/155,765.25 = 28,966.63/x
  3. Step 3: Cross multiply
    103,852.75x = 155,765.25 × 28,966.63
  4. Step 4: Simplify right side
    103,852.75x = 4,511,994,666.94
  5. Step 5: Solve for x
    x = 4,511,994,666.94/103,852.75
  6. Step 6: Final answer
    x = 43,446.08

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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.