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Finding the Fourth Proportional to 238,705.63, 358,069.66 and 78,795.52

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Solution

The fourth proportional to 238,705.63, 358,069.66 and 78,795.52 is: 118,196.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,705.63 : 358,069.66 = 78,795.52 : x
  2. Step 2: Convert to fraction form
    238,705.63/358,069.66 = 78,795.52/x
  3. Step 3: Cross multiply
    238,705.63x = 358,069.66 × 78,795.52
  4. Step 4: Simplify right side
    238,705.63x = 28,214,283,963.76
  5. Step 5: Solve for x
    x = 28,214,283,963.76/238,705.63
  6. Step 6: Final answer
    x = 118,196.98

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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.