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Finding the Fourth Proportional to 187,776.64, 259,128.48 and 102,892.96

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Solution

The fourth proportional to 187,776.64, 259,128.48 and 102,892.96 is: 141,990.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,776.64 : 259,128.48 = 102,892.96 : x
  2. Step 2: Convert to fraction form
    187,776.64/259,128.48 = 102,892.96/x
  3. Step 3: Cross multiply
    187,776.64x = 259,128.48 × 102,892.96
  4. Step 4: Simplify right side
    187,776.64x = 26,662,496,327.50
  5. Step 5: Solve for x
    x = 26,662,496,327.50/187,776.64
  6. Step 6: Final answer
    x = 141,990.49

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1.5x scale

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.