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Finding the Fourth Proportional to 111,656.45, 167,390.54 and 48,428.98

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Solution

The fourth proportional to 111,656.45, 167,390.54 and 48,428.98 is: 72,602.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,656.45 : 167,390.54 = 48,428.98 : x
  2. Step 2: Convert to fraction form
    111,656.45/167,390.54 = 48,428.98/x
  3. Step 3: Cross multiply
    111,656.45x = 167,390.54 × 48,428.98
  4. Step 4: Simplify right side
    111,656.45x = 8,106,552,453.23
  5. Step 5: Solve for x
    x = 8,106,552,453.23/111,656.45
  6. Step 6: Final answer
    x = 72,602.63

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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.