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Finding the Fourth Proportional to 104,030.60, 156,045.90 and 83,294.60

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Solution

The fourth proportional to 104,030.60, 156,045.90 and 83,294.60 is: 124,941.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,030.60 : 156,045.90 = 83,294.60 : x
  2. Step 2: Convert to fraction form
    104,030.60/156,045.90 = 83,294.60/x
  3. Step 3: Cross multiply
    104,030.60x = 156,045.90 × 83,294.60
  4. Step 4: Simplify right side
    104,030.60x = 12,997,780,822.14
  5. Step 5: Solve for x
    x = 12,997,780,822.14/104,030.60
  6. Step 6: Final answer
    x = 124,941.90

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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.