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Finding the Fourth Proportional to 341,487.78, 512,232.90 and 104,830.47

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Solution

The fourth proportional to 341,487.78, 512,232.90 and 104,830.47 is: 157,246.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,487.78 : 512,232.90 = 104,830.47 : x
  2. Step 2: Convert to fraction form
    341,487.78/512,232.90 = 104,830.47/x
  3. Step 3: Cross multiply
    341,487.78x = 512,232.90 × 104,830.47
  4. Step 4: Simplify right side
    341,487.78x = 53,697,615,656.46
  5. Step 5: Solve for x
    x = 53,697,615,656.46/341,487.78
  6. Step 6: Final answer
    x = 157,246.08

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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.