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Finding the Fourth Proportional to 474,090.45, 711,028.95 and 137,056.01

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Solution

The fourth proportional to 474,090.45, 711,028.95 and 137,056.01 is: 205,553.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,090.45 : 711,028.95 = 137,056.01 : x
  2. Step 2: Convert to fraction form
    474,090.45/711,028.95 = 137,056.01/x
  3. Step 3: Cross multiply
    474,090.45x = 711,028.95 × 137,056.01
  4. Step 4: Simplify right side
    474,090.45x = 97,450,787,326.34
  5. Step 5: Solve for x
    x = 97,450,787,326.34/474,090.45
  6. Step 6: Final answer
    x = 205,553.15

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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.