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Finding the Fourth Proportional to 355,098.42, 532,451.07 and 118,312.02

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Solution

The fourth proportional to 355,098.42, 532,451.07 and 118,312.02 is: 177,402.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,098.42 : 532,451.07 = 118,312.02 : x
  2. Step 2: Convert to fraction form
    355,098.42/532,451.07 = 118,312.02/x
  3. Step 3: Cross multiply
    355,098.42x = 532,451.07 × 118,312.02
  4. Step 4: Simplify right side
    355,098.42x = 62,995,361,642.86
  5. Step 5: Solve for x
    x = 62,995,361,642.86/355,098.42
  6. Step 6: Final answer
    x = 177,402.54

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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.