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Finding the Fourth Proportional to 172,813.75, 238,482.98 and 93,325.75

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Solution

The fourth proportional to 172,813.75, 238,482.98 and 93,325.75 is: 128,789.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,813.75 : 238,482.98 = 93,325.75 : x
  2. Step 2: Convert to fraction form
    172,813.75/238,482.98 = 93,325.75/x
  3. Step 3: Cross multiply
    172,813.75x = 238,482.98 × 93,325.75
  4. Step 4: Simplify right side
    172,813.75x = 22,256,602,970.74
  5. Step 5: Solve for x
    x = 22,256,602,970.74/172,813.75
  6. Step 6: Final answer
    x = 128,789.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.