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Finding the Fourth Proportional to 124,325.25, 186,543.39 and 65,147.25

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Solution

The fourth proportional to 124,325.25, 186,543.39 and 65,147.25 is: 97,749.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,325.25 : 186,543.39 = 65,147.25 : x
  2. Step 2: Convert to fraction form
    124,325.25/186,543.39 = 65,147.25/x
  3. Step 3: Cross multiply
    124,325.25x = 186,543.39 × 65,147.25
  4. Step 4: Simplify right side
    124,325.25x = 12,152,788,864.18
  5. Step 5: Solve for x
    x = 12,152,788,864.18/124,325.25
  6. Step 6: Final answer
    x = 97,749.97

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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.