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Finding the Fourth Proportional to 99,263.64, 149,012.10 and 61,909.68

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Solution

The fourth proportional to 99,263.64, 149,012.10 and 61,909.68 is: 92,937.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,263.64 : 149,012.10 = 61,909.68 : x
  2. Step 2: Convert to fraction form
    99,263.64/149,012.10 = 61,909.68/x
  3. Step 3: Cross multiply
    99,263.64x = 149,012.10 × 61,909.68
  4. Step 4: Simplify right side
    99,263.64x = 9,225,291,427.13
  5. Step 5: Solve for x
    x = 9,225,291,427.13/99,263.64
  6. Step 6: Final answer
    x = 92,937.27

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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.