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Finding the Fourth Proportional to 238,114.58, 328,618.28 and 130,702.80

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Solution

The fourth proportional to 238,114.58, 328,618.28 and 130,702.80 is: 180,380.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,114.58 : 328,618.28 = 130,702.80 : x
  2. Step 2: Convert to fraction form
    238,114.58/328,618.28 = 130,702.80/x
  3. Step 3: Cross multiply
    238,114.58x = 328,618.28 × 130,702.80
  4. Step 4: Simplify right side
    238,114.58x = 42,951,328,673.67
  5. Step 5: Solve for x
    x = 42,951,328,673.67/238,114.58
  6. Step 6: Final answer
    x = 180,380.93

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1.5x scale

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.