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Finding the Fourth Proportional to 238,249.16, 328,790.10 and 130,826.12

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Solution

The fourth proportional to 238,249.16, 328,790.10 and 130,826.12 is: 180,543.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,249.16 : 328,790.10 = 130,826.12 : x
  2. Step 2: Convert to fraction form
    238,249.16/328,790.10 = 130,826.12/x
  3. Step 3: Cross multiply
    238,249.16x = 328,790.10 × 130,826.12
  4. Step 4: Simplify right side
    238,249.16x = 43,014,333,077.41
  5. Step 5: Solve for x
    x = 43,014,333,077.41/238,249.16
  6. Step 6: Final answer
    x = 180,543.48

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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.