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Finding the Fourth Proportional to 155,208.96, 232,865.28 and 61,689.60

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Solution

The fourth proportional to 155,208.96, 232,865.28 and 61,689.60 is: 92,555.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,208.96 : 232,865.28 = 61,689.60 : x
  2. Step 2: Convert to fraction form
    155,208.96/232,865.28 = 61,689.60/x
  3. Step 3: Cross multiply
    155,208.96x = 232,865.28 × 61,689.60
  4. Step 4: Simplify right side
    155,208.96x = 14,365,365,977.09
  5. Step 5: Solve for x
    x = 14,365,365,977.09/155,208.96
  6. Step 6: Final answer
    x = 92,555.00

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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.