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Finding the Fourth Proportional to 114,606.40, 171,909.60 and 83,113.60

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Solution

The fourth proportional to 114,606.40, 171,909.60 and 83,113.60 is: 124,670.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,606.40 : 171,909.60 = 83,113.60 : x
  2. Step 2: Convert to fraction form
    114,606.40/171,909.60 = 83,113.60/x
  3. Step 3: Cross multiply
    114,606.40x = 171,909.60 × 83,113.60
  4. Step 4: Simplify right side
    114,606.40x = 14,288,025,730.56
  5. Step 5: Solve for x
    x = 14,288,025,730.56/114,606.40
  6. Step 6: Final answer
    x = 124,670.40

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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.