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Finding the Fourth Proportional to 571,006.61, 856,510.54 and 171,647.35

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Solution

The fourth proportional to 571,006.61, 856,510.54 and 171,647.35 is: 257,471.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,006.61 : 856,510.54 = 171,647.35 : x
  2. Step 2: Convert to fraction form
    571,006.61/856,510.54 = 171,647.35/x
  3. Step 3: Cross multiply
    571,006.61x = 856,510.54 × 171,647.35
  4. Step 4: Simplify right side
    571,006.61x = 147,017,764,438.07
  5. Step 5: Solve for x
    x = 147,017,764,438.07/571,006.61
  6. Step 6: Final answer
    x = 257,471.21

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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.