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Finding the Fourth Proportional to 366,521.76, 549,610.11 and 141,987.33

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Solution

The fourth proportional to 366,521.76, 549,610.11 and 141,987.33 is: 212,914.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,521.76 : 549,610.11 = 141,987.33 : x
  2. Step 2: Convert to fraction form
    366,521.76/549,610.11 = 141,987.33/x
  3. Step 3: Cross multiply
    366,521.76x = 549,610.11 × 141,987.33
  4. Step 4: Simplify right side
    366,521.76x = 78,037,672,059.91
  5. Step 5: Solve for x
    x = 78,037,672,059.91/366,521.76
  6. Step 6: Final answer
    x = 212,914.16

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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.