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Finding the Fourth Proportional to 71,448.60, 107,151.02 and 49,403.64

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Solution

The fourth proportional to 71,448.60, 107,151.02 and 49,403.64 is: 74,090.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,448.60 : 107,151.02 = 49,403.64 : x
  2. Step 2: Convert to fraction form
    71,448.60/107,151.02 = 49,403.64/x
  3. Step 3: Cross multiply
    71,448.60x = 107,151.02 × 49,403.64
  4. Step 4: Simplify right side
    71,448.60x = 5,293,650,417.71
  5. Step 5: Solve for x
    x = 5,293,650,417.71/71,448.60
  6. Step 6: Final answer
    x = 74,090.33

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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.