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Finding the Fourth Proportional to 318,152.95, 439,047.12 and 174,911.74

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Solution

The fourth proportional to 318,152.95, 439,047.12 and 174,911.74 is: 241,376.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,152.95 : 439,047.12 = 174,911.74 : x
  2. Step 2: Convert to fraction form
    318,152.95/439,047.12 = 174,911.74/x
  3. Step 3: Cross multiply
    318,152.95x = 439,047.12 × 174,911.74
  4. Step 4: Simplify right side
    318,152.95x = 76,794,495,701.19
  5. Step 5: Solve for x
    x = 76,794,495,701.19/318,152.95
  6. Step 6: Final answer
    x = 241,376.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.