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Finding the Fourth Proportional to 358,728.17, 538,168.16 and 118,828.49

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Solution

The fourth proportional to 358,728.17, 538,168.16 and 118,828.49 is: 178,267.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,728.17 : 538,168.16 = 118,828.49 : x
  2. Step 2: Convert to fraction form
    358,728.17/538,168.16 = 118,828.49/x
  3. Step 3: Cross multiply
    358,728.17x = 538,168.16 × 118,828.49
  4. Step 4: Simplify right side
    358,728.17x = 63,949,711,461.37
  5. Step 5: Solve for x
    x = 63,949,711,461.37/358,728.17
  6. Step 6: Final answer
    x = 178,267.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.