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Finding the Fourth Proportional to 570,009.97, 854,989.75 and 149,276.53

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Solution

The fourth proportional to 570,009.97, 854,989.75 and 149,276.53 is: 223,908.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,009.97 : 854,989.75 = 149,276.53 : x
  2. Step 2: Convert to fraction form
    570,009.97/854,989.75 = 149,276.53/x
  3. Step 3: Cross multiply
    570,009.97x = 854,989.75 × 149,276.53
  4. Step 4: Simplify right side
    570,009.97x = 127,629,903,065.57
  5. Step 5: Solve for x
    x = 127,629,903,065.57/570,009.97
  6. Step 6: Final answer
    x = 223,908.19

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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.