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Finding the Fourth Proportional to 343,476.84, 515,288.16 and 103,598.04

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Solution

The fourth proportional to 343,476.84, 515,288.16 and 103,598.04 is: 155,419.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,476.84 : 515,288.16 = 103,598.04 : x
  2. Step 2: Convert to fraction form
    343,476.84/515,288.16 = 103,598.04/x
  3. Step 3: Cross multiply
    343,476.84x = 515,288.16 × 103,598.04
  4. Step 4: Simplify right side
    343,476.84x = 53,382,843,411.21
  5. Step 5: Solve for x
    x = 53,382,843,411.21/343,476.84
  6. Step 6: Final answer
    x = 155,419.05

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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.