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Finding the Fourth Proportional to 58,934.84, 81,124.64 and 51,368

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Solution

The fourth proportional to 58,934.84, 81,124.64 and 51,368 is: 70,708.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,934.84 : 81,124.64 = 51,368 : x
  2. Step 2: Convert to fraction form
    58,934.84/81,124.64 = 51,368/x
  3. Step 3: Cross multiply
    58,934.84x = 81,124.64 × 51,368
  4. Step 4: Simplify right side
    58,934.84x = 4,167,210,507.52
  5. Step 5: Solve for x
    x = 4,167,210,507.52/58,934.84
  6. Step 6: Final answer
    x = 70,708.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.