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Finding the Fourth Proportional to 238,326.48, 328,894.50 and 130,906.44

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Solution

The fourth proportional to 238,326.48, 328,894.50 and 130,906.44 is: 180,653.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,326.48 : 328,894.50 = 130,906.44 : x
  2. Step 2: Convert to fraction form
    238,326.48/328,894.50 = 130,906.44/x
  3. Step 3: Cross multiply
    238,326.48x = 328,894.50 × 130,906.44
  4. Step 4: Simplify right side
    238,326.48x = 43,054,408,130.58
  5. Step 5: Solve for x
    x = 43,054,408,130.58/238,326.48
  6. Step 6: Final answer
    x = 180,653.06

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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.