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Finding the Fourth Proportional to 151,392.54, 208,927.35 and 84,328.86

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Solution

The fourth proportional to 151,392.54, 208,927.35 and 84,328.86 is: 116,376.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,392.54 : 208,927.35 = 84,328.86 : x
  2. Step 2: Convert to fraction form
    151,392.54/208,927.35 = 84,328.86/x
  3. Step 3: Cross multiply
    151,392.54x = 208,927.35 × 84,328.86
  4. Step 4: Simplify right side
    151,392.54x = 17,618,605,248.32
  5. Step 5: Solve for x
    x = 17,618,605,248.32/151,392.54
  6. Step 6: Final answer
    x = 116,376.97

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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.