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Finding the Fourth Proportional to 114,602.40, 171,903.60 and 83,109.60

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Solution

The fourth proportional to 114,602.40, 171,903.60 and 83,109.60 is: 124,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,602.40 : 171,903.60 = 83,109.60 : x
  2. Step 2: Convert to fraction form
    114,602.40/171,903.60 = 83,109.60/x
  3. Step 3: Cross multiply
    114,602.40x = 171,903.60 × 83,109.60
  4. Step 4: Simplify right side
    114,602.40x = 14,286,839,434.56
  5. Step 5: Solve for x
    x = 14,286,839,434.56/114,602.40
  6. Step 6: Final answer
    x = 124,664.40

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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.