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Finding the Fourth Proportional to 99,347, 149,020.86 and 94,363.88

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Solution

The fourth proportional to 99,347, 149,020.86 and 94,363.88 is: 141,546.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,347 : 149,020.86 = 94,363.88 : x
  2. Step 2: Convert to fraction form
    99,347/149,020.86 = 94,363.88/x
  3. Step 3: Cross multiply
    99,347x = 149,020.86 × 94,363.88
  4. Step 4: Simplify right side
    99,347x = 14,062,186,550.54
  5. Step 5: Solve for x
    x = 14,062,186,550.54/99,347
  6. Step 6: Final answer
    x = 141,546.16

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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.