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Finding the Fourth Proportional to 346,507.92, 519,780.48 and 109,869.05

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Solution

The fourth proportional to 346,507.92, 519,780.48 and 109,869.05 is: 164,809.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,507.92 : 519,780.48 = 109,869.05 : x
  2. Step 2: Convert to fraction form
    346,507.92/519,780.48 = 109,869.05/x
  3. Step 3: Cross multiply
    346,507.92x = 519,780.48 × 109,869.05
  4. Step 4: Simplify right side
    346,507.92x = 57,107,784,397.90
  5. Step 5: Solve for x
    x = 57,107,784,397.90/346,507.92
  6. Step 6: Final answer
    x = 164,809.47

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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.