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Finding the Fourth Proportional to 210,627.40, 316,034.70 and 110,763.40

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Solution

The fourth proportional to 210,627.40, 316,034.70 and 110,763.40 is: 166,194.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,627.40 : 316,034.70 = 110,763.40 : x
  2. Step 2: Convert to fraction form
    210,627.40/316,034.70 = 110,763.40/x
  3. Step 3: Cross multiply
    210,627.40x = 316,034.70 × 110,763.40
  4. Step 4: Simplify right side
    210,627.40x = 35,005,077,889.98
  5. Step 5: Solve for x
    x = 35,005,077,889.98/210,627.40
  6. Step 6: Final answer
    x = 166,194.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.