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Finding the Fourth Proportional to 96,730.60, 145,095.90 and 84,442.60

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Solution

The fourth proportional to 96,730.60, 145,095.90 and 84,442.60 is: 126,663.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,730.60 : 145,095.90 = 84,442.60 : x
  2. Step 2: Convert to fraction form
    96,730.60/145,095.90 = 84,442.60/x
  3. Step 3: Cross multiply
    96,730.60x = 145,095.90 × 84,442.60
  4. Step 4: Simplify right side
    96,730.60x = 12,252,275,045.34
  5. Step 5: Solve for x
    x = 12,252,275,045.34/96,730.60
  6. Step 6: Final answer
    x = 126,663.90

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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.