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Finding the Fourth Proportional to 366,076.40, 549,114.60 and 155,721.20

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Solution

The fourth proportional to 366,076.40, 549,114.60 and 155,721.20 is: 233,581.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,076.40 : 549,114.60 = 155,721.20 : x
  2. Step 2: Convert to fraction form
    366,076.40/549,114.60 = 155,721.20/x
  3. Step 3: Cross multiply
    366,076.40x = 549,114.60 × 155,721.20
  4. Step 4: Simplify right side
    366,076.40x = 85,508,784,449.52
  5. Step 5: Solve for x
    x = 85,508,784,449.52/366,076.40
  6. Step 6: Final answer
    x = 233,581.80

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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.