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Finding the Fourth Proportional to 114,617.40, 171,926.10 and 83,124.60

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Solution

The fourth proportional to 114,617.40, 171,926.10 and 83,124.60 is: 124,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,617.40 : 171,926.10 = 83,124.60 : x
  2. Step 2: Convert to fraction form
    114,617.40/171,926.10 = 83,124.60/x
  3. Step 3: Cross multiply
    114,617.40x = 171,926.10 × 83,124.60
  4. Step 4: Simplify right side
    114,617.40x = 14,291,288,292.06
  5. Step 5: Solve for x
    x = 14,291,288,292.06/114,617.40
  6. Step 6: Final answer
    x = 124,686.90

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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.