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Finding the Fourth Proportional to 171,689.60, 257,534.40 and 152,662.70

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Solution

The fourth proportional to 171,689.60, 257,534.40 and 152,662.70 is: 228,994.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,689.60 : 257,534.40 = 152,662.70 : x
  2. Step 2: Convert to fraction form
    171,689.60/257,534.40 = 152,662.70/x
  3. Step 3: Cross multiply
    171,689.60x = 257,534.40 × 152,662.70
  4. Step 4: Simplify right side
    171,689.60x = 39,315,896,846.88
  5. Step 5: Solve for x
    x = 39,315,896,846.88/171,689.60
  6. Step 6: Final answer
    x = 228,994.05

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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.