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Finding the Fourth Proportional to 144,606.84, 216,627.76 and 99,620.25

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Solution

The fourth proportional to 144,606.84, 216,627.76 and 99,620.25 is: 149,235.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,606.84 : 216,627.76 = 99,620.25 : x
  2. Step 2: Convert to fraction form
    144,606.84/216,627.76 = 99,620.25/x
  3. Step 3: Cross multiply
    144,606.84x = 216,627.76 × 99,620.25
  4. Step 4: Simplify right side
    144,606.84x = 21,580,510,525.00
  5. Step 5: Solve for x
    x = 21,580,510,525.00/144,606.84
  6. Step 6: Final answer
    x = 149,235.76

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1.5x scale

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.