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Finding the Fourth Proportional to 247,197, 370,575.60 and 89,390.40

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Solution

The fourth proportional to 247,197, 370,575.60 and 89,390.40 is: 134,006.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,197 : 370,575.60 = 89,390.40 : x
  2. Step 2: Convert to fraction form
    247,197/370,575.60 = 89,390.40/x
  3. Step 3: Cross multiply
    247,197x = 370,575.60 × 89,390.40
  4. Step 4: Simplify right side
    247,197x = 33,125,901,114.24
  5. Step 5: Solve for x
    x = 33,125,901,114.24/247,197
  6. Step 6: Final answer
    x = 134,006.08

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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.