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Finding the Fourth Proportional to 108,051.80, 162,004.80 and 57,459.20

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Solution

The fourth proportional to 108,051.80, 162,004.80 and 57,459.20 is: 86,150.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,051.80 : 162,004.80 = 57,459.20 : x
  2. Step 2: Convert to fraction form
    108,051.80/162,004.80 = 57,459.20/x
  3. Step 3: Cross multiply
    108,051.80x = 162,004.80 × 57,459.20
  4. Step 4: Simplify right side
    108,051.80x = 9,308,666,204.16
  5. Step 5: Solve for x
    x = 9,308,666,204.16/108,051.80
  6. Step 6: Final answer
    x = 86,150.03

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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.