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Finding the Fourth Proportional to 99,863.40, 149,795.10 and 94,031.40

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Solution

The fourth proportional to 99,863.40, 149,795.10 and 94,031.40 is: 141,047.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,863.40 : 149,795.10 = 94,031.40 : x
  2. Step 2: Convert to fraction form
    99,863.40/149,795.10 = 94,031.40/x
  3. Step 3: Cross multiply
    99,863.40x = 149,795.10 × 94,031.40
  4. Step 4: Simplify right side
    99,863.40x = 14,085,442,966.14
  5. Step 5: Solve for x
    x = 14,085,442,966.14/99,863.40
  6. Step 6: Final answer
    x = 141,047.10

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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.