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Finding the Fourth Proportional to 105,624.96, 145,762.43 and 63,193.47

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Solution

The fourth proportional to 105,624.96, 145,762.43 and 63,193.47 is: 87,206.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,624.96 : 145,762.43 = 63,193.47 : x
  2. Step 2: Convert to fraction form
    105,624.96/145,762.43 = 63,193.47/x
  3. Step 3: Cross multiply
    105,624.96x = 145,762.43 × 63,193.47
  4. Step 4: Simplify right side
    105,624.96x = 9,211,233,431.36
  5. Step 5: Solve for x
    x = 9,211,233,431.36/105,624.96
  6. Step 6: Final answer
    x = 87,206.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.