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Finding the Fourth Proportional to 131,154.95, 196,711.43 and 46,899.39

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Solution

The fourth proportional to 131,154.95, 196,711.43 and 46,899.39 is: 70,341.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,154.95 : 196,711.43 = 46,899.39 : x
  2. Step 2: Convert to fraction form
    131,154.95/196,711.43 = 46,899.39/x
  3. Step 3: Cross multiply
    131,154.95x = 196,711.43 × 46,899.39
  4. Step 4: Simplify right side
    131,154.95x = 9,225,645,838.53
  5. Step 5: Solve for x
    x = 9,225,645,838.53/131,154.95
  6. Step 6: Final answer
    x = 70,341.57

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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.