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Finding the Fourth Proportional to 99,472.48, 149,210.26 and 55,379.48

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Solution

The fourth proportional to 99,472.48, 149,210.26 and 55,379.48 is: 83,070.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,472.48 : 149,210.26 = 55,379.48 : x
  2. Step 2: Convert to fraction form
    99,472.48/149,210.26 = 55,379.48/x
  3. Step 3: Cross multiply
    99,472.48x = 149,210.26 × 55,379.48
  4. Step 4: Simplify right side
    99,472.48x = 8,263,186,609.46
  5. Step 5: Solve for x
    x = 8,263,186,609.46/99,472.48
  6. Step 6: Final answer
    x = 83,070.08

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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.