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Finding the Fourth Proportional to 238,814.51, 358,221.70 and 163,706.95

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Solution

The fourth proportional to 238,814.51, 358,221.70 and 163,706.95 is: 245,560.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,814.51 : 358,221.70 = 163,706.95 : x
  2. Step 2: Convert to fraction form
    238,814.51/358,221.70 = 163,706.95/x
  3. Step 3: Cross multiply
    238,814.51x = 358,221.70 × 163,706.95
  4. Step 4: Simplify right side
    238,814.51x = 58,643,381,930.82
  5. Step 5: Solve for x
    x = 58,643,381,930.82/238,814.51
  6. Step 6: Final answer
    x = 245,560.38

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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.