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Finding the Fourth Proportional to 161,694.40, 242,541.60 and 124,326.40

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Solution

The fourth proportional to 161,694.40, 242,541.60 and 124,326.40 is: 186,489.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,694.40 : 242,541.60 = 124,326.40 : x
  2. Step 2: Convert to fraction form
    161,694.40/242,541.60 = 124,326.40/x
  3. Step 3: Cross multiply
    161,694.40x = 242,541.60 × 124,326.40
  4. Step 4: Simplify right side
    161,694.40x = 30,154,323,978.24
  5. Step 5: Solve for x
    x = 30,154,323,978.24/161,694.40
  6. Step 6: Final answer
    x = 186,489.60

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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.