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Finding the Fourth Proportional to 97,730.60, 146,595.90 and 67,663.40

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Solution

The fourth proportional to 97,730.60, 146,595.90 and 67,663.40 is: 101,495.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,730.60 : 146,595.90 = 67,663.40 : x
  2. Step 2: Convert to fraction form
    97,730.60/146,595.90 = 67,663.40/x
  3. Step 3: Cross multiply
    97,730.60x = 146,595.90 × 67,663.40
  4. Step 4: Simplify right side
    97,730.60x = 9,919,177,020.06
  5. Step 5: Solve for x
    x = 9,919,177,020.06/97,730.60
  6. Step 6: Final answer
    x = 101,495.10

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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.