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Finding the Fourth Proportional to 340,574.15, 510,859.80 and 103,916.04

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Solution

The fourth proportional to 340,574.15, 510,859.80 and 103,916.04 is: 155,873.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,574.15 : 510,859.80 = 103,916.04 : x
  2. Step 2: Convert to fraction form
    340,574.15/510,859.80 = 103,916.04/x
  3. Step 3: Cross multiply
    340,574.15x = 510,859.80 × 103,916.04
  4. Step 4: Simplify right side
    340,574.15x = 53,086,527,411.19
  5. Step 5: Solve for x
    x = 53,086,527,411.19/340,574.15
  6. Step 6: Final answer
    x = 155,873.63

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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.