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Finding the Fourth Proportional to 103,940.01, 154,837.37 and 97,485.93

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Solution

The fourth proportional to 103,940.01, 154,837.37 and 97,485.93 is: 145,222.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,940.01 : 154,837.37 = 97,485.93 : x
  2. Step 2: Convert to fraction form
    103,940.01/154,837.37 = 97,485.93/x
  3. Step 3: Cross multiply
    103,940.01x = 154,837.37 × 97,485.93
  4. Step 4: Simplify right side
    103,940.01x = 15,094,465,256.92
  5. Step 5: Solve for x
    x = 15,094,465,256.92/103,940.01
  6. Step 6: Final answer
    x = 145,222.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.