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Finding the Fourth Proportional to 238,074.53, 328,541.88 and 130,646.36

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Solution

The fourth proportional to 238,074.53, 328,541.88 and 130,646.36 is: 180,291.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,074.53 : 328,541.88 = 130,646.36 : x
  2. Step 2: Convert to fraction form
    238,074.53/328,541.88 = 130,646.36/x
  3. Step 3: Cross multiply
    238,074.53x = 328,541.88 × 130,646.36
  4. Step 4: Simplify right side
    238,074.53x = 42,922,799,576.77
  5. Step 5: Solve for x
    x = 42,922,799,576.77/238,074.53
  6. Step 6: Final answer
    x = 180,291.44

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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.