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Finding the Fourth Proportional to 98,090.32, 146,926.64 and 74,133.98

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Solution

The fourth proportional to 98,090.32, 146,926.64 and 74,133.98 is: 111,043.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,090.32 : 146,926.64 = 74,133.98 : x
  2. Step 2: Convert to fraction form
    98,090.32/146,926.64 = 74,133.98/x
  3. Step 3: Cross multiply
    98,090.32x = 146,926.64 × 74,133.98
  4. Step 4: Simplify right side
    98,090.32x = 10,892,256,591.23
  5. Step 5: Solve for x
    x = 10,892,256,591.23/98,090.32
  6. Step 6: Final answer
    x = 111,043.13

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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.