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Finding the Fourth Proportional to 570,966.77, 856,465.15 and 166,142.63

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Solution

The fourth proportional to 570,966.77, 856,465.15 and 166,142.63 is: 249,218.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,966.77 : 856,465.15 = 166,142.63 : x
  2. Step 2: Convert to fraction form
    570,966.77/856,465.15 = 166,142.63/x
  3. Step 3: Cross multiply
    570,966.77x = 856,465.15 × 166,142.63
  4. Step 4: Simplify right side
    570,966.77x = 142,295,372,524.35
  5. Step 5: Solve for x
    x = 142,295,372,524.35/570,966.77
  6. Step 6: Final answer
    x = 249,218.31

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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.