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Finding the Fourth Proportional to 346,573.95, 519,856.80 and 109,918.68

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Solution

The fourth proportional to 346,573.95, 519,856.80 and 109,918.68 is: 164,876.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,573.95 : 519,856.80 = 109,918.68 : x
  2. Step 2: Convert to fraction form
    346,573.95/519,856.80 = 109,918.68/x
  3. Step 3: Cross multiply
    346,573.95x = 519,856.80 × 109,918.68
  4. Step 4: Simplify right side
    346,573.95x = 57,141,973,245.02
  5. Step 5: Solve for x
    x = 57,141,973,245.02/346,573.95
  6. Step 6: Final answer
    x = 164,876.71

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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.