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Finding the Fourth Proportional to 238,065.01, 328,529.52 and 130,641.80

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Solution

The fourth proportional to 238,065.01, 328,529.52 and 130,641.80 is: 180,285.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,065.01 : 328,529.52 = 130,641.80 : x
  2. Step 2: Convert to fraction form
    238,065.01/328,529.52 = 130,641.80/x
  3. Step 3: Cross multiply
    238,065.01x = 328,529.52 × 130,641.80
  4. Step 4: Simplify right side
    238,065.01x = 42,919,686,203.29
  5. Step 5: Solve for x
    x = 42,919,686,203.29/238,065.01
  6. Step 6: Final answer
    x = 180,285.57

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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.