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Finding the Fourth Proportional to 353,168.60, 529,752.90 and 253,117.40

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Solution

The fourth proportional to 353,168.60, 529,752.90 and 253,117.40 is: 379,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,168.60 : 529,752.90 = 253,117.40 : x
  2. Step 2: Convert to fraction form
    353,168.60/529,752.90 = 253,117.40/x
  3. Step 3: Cross multiply
    353,168.60x = 529,752.90 × 253,117.40
  4. Step 4: Simplify right side
    353,168.60x = 134,089,676,690.46
  5. Step 5: Solve for x
    x = 134,089,676,690.46/353,168.60
  6. Step 6: Final answer
    x = 379,676.10

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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.