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Finding the Fourth Proportional to 346,087.80, 518,572.80 and 195,881.40

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Solution

The fourth proportional to 346,087.80, 518,572.80 and 195,881.40 is: 293,505.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,087.80 : 518,572.80 = 195,881.40 : x
  2. Step 2: Convert to fraction form
    346,087.80/518,572.80 = 195,881.40/x
  3. Step 3: Cross multiply
    346,087.80x = 518,572.80 × 195,881.40
  4. Step 4: Simplify right side
    346,087.80x = 101,578,766,065.92
  5. Step 5: Solve for x
    x = 101,578,766,065.92/346,087.80
  6. Step 6: Final answer
    x = 293,505.77

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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.