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Finding the Fourth Proportional to 350,053.60, 525,080.40 and 113,420.20

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Solution

The fourth proportional to 350,053.60, 525,080.40 and 113,420.20 is: 170,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,053.60 : 525,080.40 = 113,420.20 : x
  2. Step 2: Convert to fraction form
    350,053.60/525,080.40 = 113,420.20/x
  3. Step 3: Cross multiply
    350,053.60x = 525,080.40 × 113,420.20
  4. Step 4: Simplify right side
    350,053.60x = 59,554,723,984.08
  5. Step 5: Solve for x
    x = 59,554,723,984.08/350,053.60
  6. Step 6: Final answer
    x = 170,130.30

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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.