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Finding the Fourth Proportional to 374,307.28, 561,400.62 and 104,442.40

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Solution

The fourth proportional to 374,307.28, 561,400.62 and 104,442.40 is: 156,646.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,307.28 : 561,400.62 = 104,442.40 : x
  2. Step 2: Convert to fraction form
    374,307.28/561,400.62 = 104,442.40/x
  3. Step 3: Cross multiply
    374,307.28x = 561,400.62 × 104,442.40
  4. Step 4: Simplify right side
    374,307.28x = 58,634,028,114.29
  5. Step 5: Solve for x
    x = 58,634,028,114.29/374,307.28
  6. Step 6: Final answer
    x = 156,646.77

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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.