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Finding the Fourth Proportional to 97,741.80, 146,612.70 and 63,916.20

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Solution

The fourth proportional to 97,741.80, 146,612.70 and 63,916.20 is: 95,874.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,741.80 : 146,612.70 = 63,916.20 : x
  2. Step 2: Convert to fraction form
    97,741.80/146,612.70 = 63,916.20/x
  3. Step 3: Cross multiply
    97,741.80x = 146,612.70 × 63,916.20
  4. Step 4: Simplify right side
    97,741.80x = 9,370,926,655.74
  5. Step 5: Solve for x
    x = 9,370,926,655.74/97,741.80
  6. Step 6: Final answer
    x = 95,874.30

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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.