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Finding the Fourth Proportional to 71,347.50, 98,459.55 and 41,539.50

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Solution

The fourth proportional to 71,347.50, 98,459.55 and 41,539.50 is: 57,324.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,347.50 : 98,459.55 = 41,539.50 : x
  2. Step 2: Convert to fraction form
    71,347.50/98,459.55 = 41,539.50/x
  3. Step 3: Cross multiply
    71,347.50x = 98,459.55 × 41,539.50
  4. Step 4: Simplify right side
    71,347.50x = 4,089,960,477.23
  5. Step 5: Solve for x
    x = 4,089,960,477.23/71,347.50
  6. Step 6: Final answer
    x = 57,324.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.