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Finding the Fourth Proportional to 78,903.48, 118,294.74 and 32,126.52

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Solution

The fourth proportional to 78,903.48, 118,294.74 and 32,126.52 is: 48,165.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,903.48 : 118,294.74 = 32,126.52 : x
  2. Step 2: Convert to fraction form
    78,903.48/118,294.74 = 32,126.52/x
  3. Step 3: Cross multiply
    78,903.48x = 118,294.74 × 32,126.52
  4. Step 4: Simplify right side
    78,903.48x = 3,800,398,330.50
  5. Step 5: Solve for x
    x = 3,800,398,330.50/78,903.48
  6. Step 6: Final answer
    x = 48,165.15

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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.