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Finding the Fourth Proportional to 203,176.32, 304,784.53 and 70,039.06

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Solution

The fourth proportional to 203,176.32, 304,784.53 and 70,039.06 is: 105,065.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,176.32 : 304,784.53 = 70,039.06 : x
  2. Step 2: Convert to fraction form
    203,176.32/304,784.53 = 70,039.06/x
  3. Step 3: Cross multiply
    203,176.32x = 304,784.53 × 70,039.06
  4. Step 4: Simplify right side
    203,176.32x = 21,346,821,983.74
  5. Step 5: Solve for x
    x = 21,346,821,983.74/203,176.32
  6. Step 6: Final answer
    x = 105,065.50

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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.