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Finding the Fourth Proportional to 238,236.16, 328,772.16 and 130,813.12

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Solution

The fourth proportional to 238,236.16, 328,772.16 and 130,813.12 is: 180,525.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,236.16 : 328,772.16 = 130,813.12 : x
  2. Step 2: Convert to fraction form
    238,236.16/328,772.16 = 130,813.12/x
  3. Step 3: Cross multiply
    238,236.16x = 328,772.16 × 130,813.12
  4. Step 4: Simplify right side
    238,236.16x = 43,007,712,018.74
  5. Step 5: Solve for x
    x = 43,007,712,018.74/238,236.16
  6. Step 6: Final answer
    x = 180,525.54

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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.