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Finding the Fourth Proportional to 112,700.94, 169,056.81 and 92,943.42

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Solution

The fourth proportional to 112,700.94, 169,056.81 and 92,943.42 is: 139,419.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,700.94 : 169,056.81 = 92,943.42 : x
  2. Step 2: Convert to fraction form
    112,700.94/169,056.81 = 92,943.42/x
  3. Step 3: Cross multiply
    112,700.94x = 169,056.81 × 92,943.42
  4. Step 4: Simplify right side
    112,700.94x = 15,712,718,095.69
  5. Step 5: Solve for x
    x = 15,712,718,095.69/112,700.94
  6. Step 6: Final answer
    x = 139,419.58

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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.