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Finding the Fourth Proportional to 606,268.34, 909,405.56 and 156,957.70

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Solution

The fourth proportional to 606,268.34, 909,405.56 and 156,957.70 is: 235,437.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,268.34 : 909,405.56 = 156,957.70 : x
  2. Step 2: Convert to fraction form
    606,268.34/909,405.56 = 156,957.70/x
  3. Step 3: Cross multiply
    606,268.34x = 909,405.56 × 156,957.70
  4. Step 4: Simplify right side
    606,268.34x = 142,738,205,064.81
  5. Step 5: Solve for x
    x = 142,738,205,064.81/606,268.34
  6. Step 6: Final answer
    x = 235,437.34

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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.