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Finding the Fourth Proportional to 186,382.74, 257,211.12 and 101,499.72

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Solution

The fourth proportional to 186,382.74, 257,211.12 and 101,499.72 is: 140,071.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,382.74 : 257,211.12 = 101,499.72 : x
  2. Step 2: Convert to fraction form
    186,382.74/257,211.12 = 101,499.72/x
  3. Step 3: Cross multiply
    186,382.74x = 257,211.12 × 101,499.72
  4. Step 4: Simplify right side
    186,382.74x = 26,106,856,660.89
  5. Step 5: Solve for x
    x = 26,106,856,660.89/186,382.74
  6. Step 6: Final answer
    x = 140,071.21

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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.