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Finding the Fourth Proportional to 116,043.28, 174,028.28 and 71,603.60

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Solution

The fourth proportional to 116,043.28, 174,028.28 and 71,603.60 is: 107,382.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,043.28 : 174,028.28 = 71,603.60 : x
  2. Step 2: Convert to fraction form
    116,043.28/174,028.28 = 71,603.60/x
  3. Step 3: Cross multiply
    116,043.28x = 174,028.28 × 71,603.60
  4. Step 4: Simplify right side
    116,043.28x = 12,461,051,349.81
  5. Step 5: Solve for x
    x = 12,461,051,349.81/116,043.28
  6. Step 6: Final answer
    x = 107,382.79

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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.