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Finding the Fourth Proportional to 103,765.74, 155,502.63 and 59,325.90

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Solution

The fourth proportional to 103,765.74, 155,502.63 and 59,325.90 is: 88,905.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,765.74 : 155,502.63 = 59,325.90 : x
  2. Step 2: Convert to fraction form
    103,765.74/155,502.63 = 59,325.90/x
  3. Step 3: Cross multiply
    103,765.74x = 155,502.63 × 59,325.90
  4. Step 4: Simplify right side
    103,765.74x = 9,225,333,477.12
  5. Step 5: Solve for x
    x = 9,225,333,477.12/103,765.74
  6. Step 6: Final answer
    x = 88,905.39

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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.