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Finding the Fourth Proportional to 570,830.81, 856,296.79 and 150,106.69

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Solution

The fourth proportional to 570,830.81, 856,296.79 and 150,106.69 is: 225,173.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,830.81 : 856,296.79 = 150,106.69 : x
  2. Step 2: Convert to fraction form
    570,830.81/856,296.79 = 150,106.69/x
  3. Step 3: Cross multiply
    570,830.81x = 856,296.79 × 150,106.69
  4. Step 4: Simplify right side
    570,830.81x = 128,535,875,132.87
  5. Step 5: Solve for x
    x = 128,535,875,132.87/570,830.81
  6. Step 6: Final answer
    x = 225,173.33

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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.