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Finding the Fourth Proportional to 141,894.92, 212,875.78 and 42,055.94

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Solution

The fourth proportional to 141,894.92, 212,875.78 and 42,055.94 is: 63,093.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,894.92 : 212,875.78 = 42,055.94 : x
  2. Step 2: Convert to fraction form
    141,894.92/212,875.78 = 42,055.94/x
  3. Step 3: Cross multiply
    141,894.92x = 212,875.78 × 42,055.94
  4. Step 4: Simplify right side
    141,894.92x = 8,952,691,031.13
  5. Step 5: Solve for x
    x = 8,952,691,031.13/141,894.92
  6. Step 6: Final answer
    x = 63,093.81

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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.