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Finding the Fourth Proportional to 162,053.40, 243,007.20 and 73,261.20

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Solution

The fourth proportional to 162,053.40, 243,007.20 and 73,261.20 is: 109,858.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,053.40 : 243,007.20 = 73,261.20 : x
  2. Step 2: Convert to fraction form
    162,053.40/243,007.20 = 73,261.20/x
  3. Step 3: Cross multiply
    162,053.40x = 243,007.20 × 73,261.20
  4. Step 4: Simplify right side
    162,053.40x = 17,802,999,080.64
  5. Step 5: Solve for x
    x = 17,802,999,080.64/162,053.40
  6. Step 6: Final answer
    x = 109,858.84

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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.