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Finding the Fourth Proportional to 114,655.80, 171,983.70 and 102,408.60

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Solution

The fourth proportional to 114,655.80, 171,983.70 and 102,408.60 is: 153,612.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,655.80 : 171,983.70 = 102,408.60 : x
  2. Step 2: Convert to fraction form
    114,655.80/171,983.70 = 102,408.60/x
  3. Step 3: Cross multiply
    114,655.80x = 171,983.70 × 102,408.60
  4. Step 4: Simplify right side
    114,655.80x = 17,612,609,939.82
  5. Step 5: Solve for x
    x = 17,612,609,939.82/114,655.80
  6. Step 6: Final answer
    x = 153,612.90

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1.5x scale

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.