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Finding the Fourth Proportional to 76,017.60, 104,900.40 and 42,483.60

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Solution

The fourth proportional to 76,017.60, 104,900.40 and 42,483.60 is: 58,625.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,017.60 : 104,900.40 = 42,483.60 : x
  2. Step 2: Convert to fraction form
    76,017.60/104,900.40 = 42,483.60/x
  3. Step 3: Cross multiply
    76,017.60x = 104,900.40 × 42,483.60
  4. Step 4: Simplify right side
    76,017.60x = 4,456,546,633.44
  5. Step 5: Solve for x
    x = 4,456,546,633.44/76,017.60
  6. Step 6: Final answer
    x = 58,625.20

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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.