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Finding the Fourth Proportional to 186,655.56, 257,590.74 and 104,997.96

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Solution

The fourth proportional to 186,655.56, 257,590.74 and 104,997.96 is: 144,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,655.56 : 257,590.74 = 104,997.96 : x
  2. Step 2: Convert to fraction form
    186,655.56/257,590.74 = 104,997.96/x
  3. Step 3: Cross multiply
    186,655.56x = 257,590.74 × 104,997.96
  4. Step 4: Simplify right side
    186,655.56x = 27,046,502,214.89
  5. Step 5: Solve for x
    x = 27,046,502,214.89/186,655.56
  6. Step 6: Final answer
    x = 144,900.60

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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.