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Finding the Fourth Proportional to 98,556.60, 147,810.60 and 39,403.92

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Solution

The fourth proportional to 98,556.60, 147,810.60 and 39,403.92 is: 59,096.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,556.60 : 147,810.60 = 39,403.92 : x
  2. Step 2: Convert to fraction form
    98,556.60/147,810.60 = 39,403.92/x
  3. Step 3: Cross multiply
    98,556.60x = 147,810.60 × 39,403.92
  4. Step 4: Simplify right side
    98,556.60x = 5,824,317,057.55
  5. Step 5: Solve for x
    x = 5,824,317,057.55/98,556.60
  6. Step 6: Final answer
    x = 59,096.16

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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.