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Finding the Fourth Proportional to 98,083.60, 147,125.40 and 56,611.60

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Solution

The fourth proportional to 98,083.60, 147,125.40 and 56,611.60 is: 84,917.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,083.60 : 147,125.40 = 56,611.60 : x
  2. Step 2: Convert to fraction form
    98,083.60/147,125.40 = 56,611.60/x
  3. Step 3: Cross multiply
    98,083.60x = 147,125.40 × 56,611.60
  4. Step 4: Simplify right side
    98,083.60x = 8,329,004,294.64
  5. Step 5: Solve for x
    x = 8,329,004,294.64/98,083.60
  6. Step 6: Final answer
    x = 84,917.40

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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.