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Finding the Fourth Proportional to 278,399.91, 384,356.88 and 183,071.01

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Solution

The fourth proportional to 278,399.91, 384,356.88 and 183,071.01 is: 252,746.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,399.91 : 384,356.88 = 183,071.01 : x
  2. Step 2: Convert to fraction form
    278,399.91/384,356.88 = 183,071.01/x
  3. Step 3: Cross multiply
    278,399.91x = 384,356.88 × 183,071.01
  4. Step 4: Simplify right side
    278,399.91x = 70,364,602,222.05
  5. Step 5: Solve for x
    x = 70,364,602,222.05/278,399.91
  6. Step 6: Final answer
    x = 252,746.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.