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Finding the Fourth Proportional to 571,085.28, 856,025.11 and 191,646.25

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Solution

The fourth proportional to 571,085.28, 856,025.11 and 191,646.25 is: 287,267.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,085.28 : 856,025.11 = 191,646.25 : x
  2. Step 2: Convert to fraction form
    571,085.28/856,025.11 = 191,646.25/x
  3. Step 3: Cross multiply
    571,085.28x = 856,025.11 × 191,646.25
  4. Step 4: Simplify right side
    571,085.28x = 164,054,002,237.34
  5. Step 5: Solve for x
    x = 164,054,002,237.34/571,085.28
  6. Step 6: Final answer
    x = 287,267.08

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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.