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Finding the Fourth Proportional to 156,045.90, 233,485.65 and 103,557.90

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Solution

The fourth proportional to 156,045.90, 233,485.65 and 103,557.90 is: 154,949.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,045.90 : 233,485.65 = 103,557.90 : x
  2. Step 2: Convert to fraction form
    156,045.90/233,485.65 = 103,557.90/x
  3. Step 3: Cross multiply
    156,045.90x = 233,485.65 × 103,557.90
  4. Step 4: Simplify right side
    156,045.90x = 24,179,283,594.14
  5. Step 5: Solve for x
    x = 24,179,283,594.14/156,045.90
  6. Step 6: Final answer
    x = 154,949.82

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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.