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Finding the Fourth Proportional to 248,841.40, 372,851.70 and 143,476.60

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Solution

The fourth proportional to 248,841.40, 372,851.70 and 143,476.60 is: 214,978.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,841.40 : 372,851.70 = 143,476.60 : x
  2. Step 2: Convert to fraction form
    248,841.40/372,851.70 = 143,476.60/x
  3. Step 3: Cross multiply
    248,841.40x = 372,851.70 × 143,476.60
  4. Step 4: Simplify right side
    248,841.40x = 53,495,494,220.22
  5. Step 5: Solve for x
    x = 53,495,494,220.22/248,841.40
  6. Step 6: Final answer
    x = 214,978.27

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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.