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Finding the Fourth Proportional to 103,440.35, 155,050.25 and 58,971.35

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Solution

The fourth proportional to 103,440.35, 155,050.25 and 58,971.35 is: 88,394.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,440.35 : 155,050.25 = 58,971.35 : x
  2. Step 2: Convert to fraction form
    103,440.35/155,050.25 = 58,971.35/x
  3. Step 3: Cross multiply
    103,440.35x = 155,050.25 × 58,971.35
  4. Step 4: Simplify right side
    103,440.35x = 9,143,521,785.09
  5. Step 5: Solve for x
    x = 9,143,521,785.09/103,440.35
  6. Step 6: Final answer
    x = 88,394.15

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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.