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Finding the Fourth Proportional to 358,775.73, 537,858.02 and 158,987.21

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Solution

The fourth proportional to 358,775.73, 537,858.02 and 158,987.21 is: 238,345.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,775.73 : 537,858.02 = 158,987.21 : x
  2. Step 2: Convert to fraction form
    358,775.73/537,858.02 = 158,987.21/x
  3. Step 3: Cross multiply
    358,775.73x = 537,858.02 × 158,987.21
  4. Step 4: Simplify right side
    358,775.73x = 85,512,543,684.10
  5. Step 5: Solve for x
    x = 85,512,543,684.10/358,775.73
  6. Step 6: Final answer
    x = 238,345.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.