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Finding the Fourth Proportional to 159,090.70, 238,636.05 and 133,041.10

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Solution

The fourth proportional to 159,090.70, 238,636.05 and 133,041.10 is: 199,561.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,090.70 : 238,636.05 = 133,041.10 : x
  2. Step 2: Convert to fraction form
    159,090.70/238,636.05 = 133,041.10/x
  3. Step 3: Cross multiply
    159,090.70x = 238,636.05 × 133,041.10
  4. Step 4: Simplify right side
    159,090.70x = 31,748,402,591.66
  5. Step 5: Solve for x
    x = 31,748,402,591.66/159,090.70
  6. Step 6: Final answer
    x = 199,561.65

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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.