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Finding the Fourth Proportional to 99,296.66, 148,884.64 and 40,062.98

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Solution

The fourth proportional to 99,296.66, 148,884.64 and 40,062.98 is: 60,070.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,296.66 : 148,884.64 = 40,062.98 : x
  2. Step 2: Convert to fraction form
    99,296.66/148,884.64 = 40,062.98/x
  3. Step 3: Cross multiply
    99,296.66x = 148,884.64 × 40,062.98
  4. Step 4: Simplify right side
    99,296.66x = 5,964,762,354.63
  5. Step 5: Solve for x
    x = 5,964,762,354.63/99,296.66
  6. Step 6: Final answer
    x = 60,070.12

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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.