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Finding the Fourth Proportional to 118,615.40, 177,858.30 and 48,415.40

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Solution

The fourth proportional to 118,615.40, 177,858.30 and 48,415.40 is: 72,596.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,615.40 : 177,858.30 = 48,415.40 : x
  2. Step 2: Convert to fraction form
    118,615.40/177,858.30 = 48,415.40/x
  3. Step 3: Cross multiply
    118,615.40x = 177,858.30 × 48,415.40
  4. Step 4: Simplify right side
    118,615.40x = 8,611,080,737.82
  5. Step 5: Solve for x
    x = 8,611,080,737.82/118,615.40
  6. Step 6: Final answer
    x = 72,596.65

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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.