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Finding the Fourth Proportional to 368,579.67, 552,869.72 and 102,340.19

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Solution

The fourth proportional to 368,579.67, 552,869.72 and 102,340.19 is: 153,510.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,579.67 : 552,869.72 = 102,340.19 : x
  2. Step 2: Convert to fraction form
    368,579.67/552,869.72 = 102,340.19/x
  3. Step 3: Cross multiply
    368,579.67x = 552,869.72 × 102,340.19
  4. Step 4: Simplify right side
    368,579.67x = 56,580,793,444.30
  5. Step 5: Solve for x
    x = 56,580,793,444.30/368,579.67
  6. Step 6: Final answer
    x = 153,510.35

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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.