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Finding the Fourth Proportional to 186,991.98, 258,010.67 and 110,472.72

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Solution

The fourth proportional to 186,991.98, 258,010.67 and 110,472.72 is: 152,429.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,991.98 : 258,010.67 = 110,472.72 : x
  2. Step 2: Convert to fraction form
    186,991.98/258,010.67 = 110,472.72/x
  3. Step 3: Cross multiply
    186,991.98x = 258,010.67 × 110,472.72
  4. Step 4: Simplify right side
    186,991.98x = 28,503,139,916.81
  5. Step 5: Solve for x
    x = 28,503,139,916.81/186,991.98
  6. Step 6: Final answer
    x = 152,429.75

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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.