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Finding the Fourth Proportional to 371,316.79, 556,885.87 and 171,445.04

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Solution

The fourth proportional to 371,316.79, 556,885.87 and 171,445.04 is: 257,126.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,316.79 : 556,885.87 = 171,445.04 : x
  2. Step 2: Convert to fraction form
    371,316.79/556,885.87 = 171,445.04/x
  3. Step 3: Cross multiply
    371,316.79x = 556,885.87 × 171,445.04
  4. Step 4: Simplify right side
    371,316.79x = 95,475,319,132.86
  5. Step 5: Solve for x
    x = 95,475,319,132.86/371,316.79
  6. Step 6: Final answer
    x = 257,126.32

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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.