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Finding the Fourth Proportional to 103,648.76, 143,024.90 and 58,325.61

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Solution

The fourth proportional to 103,648.76, 143,024.90 and 58,325.61 is: 80,483.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,648.76 : 143,024.90 = 58,325.61 : x
  2. Step 2: Convert to fraction form
    103,648.76/143,024.90 = 58,325.61/x
  3. Step 3: Cross multiply
    103,648.76x = 143,024.90 × 58,325.61
  4. Step 4: Simplify right side
    103,648.76x = 8,342,014,246.06
  5. Step 5: Solve for x
    x = 8,342,014,246.06/103,648.76
  6. Step 6: Final answer
    x = 80,483.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.