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Finding the Fourth Proportional to 354,360.42, 531,445.86 and 242,021.52

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Solution

The fourth proportional to 354,360.42, 531,445.86 and 242,021.52 is: 362,967.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,360.42 : 531,445.86 = 242,021.52 : x
  2. Step 2: Convert to fraction form
    354,360.42/531,445.86 = 242,021.52/x
  3. Step 3: Cross multiply
    354,360.42x = 531,445.86 × 242,021.52
  4. Step 4: Simplify right side
    354,360.42x = 128,621,334,834.91
  5. Step 5: Solve for x
    x = 128,621,334,834.91/354,360.42
  6. Step 6: Final answer
    x = 362,967.55

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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.