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Finding the Fourth Proportional to 114,221.76, 157,624.08 and 63,920.64

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Solution

The fourth proportional to 114,221.76, 157,624.08 and 63,920.64 is: 88,209.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,221.76 : 157,624.08 = 63,920.64 : x
  2. Step 2: Convert to fraction form
    114,221.76/157,624.08 = 63,920.64/x
  3. Step 3: Cross multiply
    114,221.76x = 157,624.08 × 63,920.64
  4. Step 4: Simplify right side
    114,221.76x = 10,075,432,073.01
  5. Step 5: Solve for x
    x = 10,075,432,073.01/114,221.76
  6. Step 6: Final answer
    x = 88,209.39

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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.