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Finding the Fourth Proportional to 210,734.50, 316,036.14 and 70,460.32

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Solution

The fourth proportional to 210,734.50, 316,036.14 and 70,460.32 is: 105,668.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,734.50 : 316,036.14 = 70,460.32 : x
  2. Step 2: Convert to fraction form
    210,734.50/316,036.14 = 70,460.32/x
  3. Step 3: Cross multiply
    210,734.50x = 316,036.14 × 70,460.32
  4. Step 4: Simplify right side
    210,734.50x = 22,268,007,555.96
  5. Step 5: Solve for x
    x = 22,268,007,555.96/210,734.50
  6. Step 6: Final answer
    x = 105,668.54

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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.