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Finding the Fourth Proportional to 186,271.46, 257,047.46 and 105,694.18

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Solution

The fourth proportional to 186,271.46, 257,047.46 and 105,694.18 is: 145,853.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,271.46 : 257,047.46 = 105,694.18 : x
  2. Step 2: Convert to fraction form
    186,271.46/257,047.46 = 105,694.18/x
  3. Step 3: Cross multiply
    186,271.46x = 257,047.46 × 105,694.18
  4. Step 4: Simplify right side
    186,271.46x = 27,168,420,127.40
  5. Step 5: Solve for x
    x = 27,168,420,127.40/186,271.46
  6. Step 6: Final answer
    x = 145,853.91

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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.