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Finding the Fourth Proportional to 104,995.08, 157,492.08 and 87,427.80

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Solution

The fourth proportional to 104,995.08, 157,492.08 and 87,427.80 is: 131,141.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,995.08 : 157,492.08 = 87,427.80 : x
  2. Step 2: Convert to fraction form
    104,995.08/157,492.08 = 87,427.80/x
  3. Step 3: Cross multiply
    104,995.08x = 157,492.08 × 87,427.80
  4. Step 4: Simplify right side
    104,995.08x = 13,769,186,071.82
  5. Step 5: Solve for x
    x = 13,769,186,071.82/104,995.08
  6. Step 6: Final answer
    x = 131,141.25

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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.