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Finding the Fourth Proportional to 194,685.80, 292,028.70 and 70,036.52

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Solution

The fourth proportional to 194,685.80, 292,028.70 and 70,036.52 is: 105,054.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,685.80 : 292,028.70 = 70,036.52 : x
  2. Step 2: Convert to fraction form
    194,685.80/292,028.70 = 70,036.52/x
  3. Step 3: Cross multiply
    194,685.80x = 292,028.70 × 70,036.52
  4. Step 4: Simplify right side
    194,685.80x = 20,452,673,888.12
  5. Step 5: Solve for x
    x = 20,452,673,888.12/194,685.80
  6. Step 6: Final answer
    x = 105,054.78

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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.