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Finding the Fourth Proportional to 107,488.58, 161,236.51 and 28,602.88

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Solution

The fourth proportional to 107,488.58, 161,236.51 and 28,602.88 is: 42,905.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,488.58 : 161,236.51 = 28,602.88 : x
  2. Step 2: Convert to fraction form
    107,488.58/161,236.51 = 28,602.88/x
  3. Step 3: Cross multiply
    107,488.58x = 161,236.51 × 28,602.88
  4. Step 4: Simplify right side
    107,488.58x = 4,611,828,784.45
  5. Step 5: Solve for x
    x = 4,611,828,784.45/107,488.58
  6. Step 6: Final answer
    x = 42,905.29

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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.