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Finding the Fourth Proportional to 365,987.34, 549,025.29 and 129,281.58

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Solution

The fourth proportional to 365,987.34, 549,025.29 and 129,281.58 is: 193,938.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,987.34 : 549,025.29 = 129,281.58 : x
  2. Step 2: Convert to fraction form
    365,987.34/549,025.29 = 129,281.58/x
  3. Step 3: Cross multiply
    365,987.34x = 549,025.29 × 129,281.58
  4. Step 4: Simplify right side
    365,987.34x = 70,978,856,951.16
  5. Step 5: Solve for x
    x = 70,978,856,951.16/365,987.34
  6. Step 6: Final answer
    x = 193,938.01

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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.