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Finding the Fourth Proportional to 103,045.80, 154,374.30 and 96,047.40

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Solution

The fourth proportional to 103,045.80, 154,374.30 and 96,047.40 is: 143,889.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,045.80 : 154,374.30 = 96,047.40 : x
  2. Step 2: Convert to fraction form
    103,045.80/154,374.30 = 96,047.40/x
  3. Step 3: Cross multiply
    103,045.80x = 154,374.30 × 96,047.40
  4. Step 4: Simplify right side
    103,045.80x = 14,827,250,141.82
  5. Step 5: Solve for x
    x = 14,827,250,141.82/103,045.80
  6. Step 6: Final answer
    x = 143,889.90

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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.