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Finding the Fourth Proportional to 127,715.54, 191,584.85 and 48,830.45

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Solution

The fourth proportional to 127,715.54, 191,584.85 and 48,830.45 is: 73,250.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,715.54 : 191,584.85 = 48,830.45 : x
  2. Step 2: Convert to fraction form
    127,715.54/191,584.85 = 48,830.45/x
  3. Step 3: Cross multiply
    127,715.54x = 191,584.85 × 48,830.45
  4. Step 4: Simplify right side
    127,715.54x = 9,355,173,236.61
  5. Step 5: Solve for x
    x = 9,355,173,236.61/127,715.54
  6. Step 6: Final answer
    x = 73,250.08

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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.