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Finding the Fourth Proportional to 99,679.28, 149,547.78 and 29,560.28

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Solution

The fourth proportional to 99,679.28, 149,547.78 and 29,560.28 is: 44,348.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,679.28 : 149,547.78 = 29,560.28 : x
  2. Step 2: Convert to fraction form
    99,679.28/149,547.78 = 29,560.28/x
  3. Step 3: Cross multiply
    99,679.28x = 149,547.78 × 29,560.28
  4. Step 4: Simplify right side
    99,679.28x = 4,420,674,250.18
  5. Step 5: Solve for x
    x = 4,420,674,250.18/99,679.28
  6. Step 6: Final answer
    x = 44,348.98

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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.