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Finding the Fourth Proportional to 238,653.98, 357,980.83 and 70,175.70

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Solution

The fourth proportional to 238,653.98, 357,980.83 and 70,175.70 is: 105,263.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,653.98 : 357,980.83 = 70,175.70 : x
  2. Step 2: Convert to fraction form
    238,653.98/357,980.83 = 70,175.70/x
  3. Step 3: Cross multiply
    238,653.98x = 357,980.83 × 70,175.70
  4. Step 4: Simplify right side
    238,653.98x = 25,121,555,331.83
  5. Step 5: Solve for x
    x = 25,121,555,331.83/238,653.98
  6. Step 6: Final answer
    x = 105,263.51

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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.