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Finding the Fourth Proportional to 103,636.60, 143,018.50 and 58,924.60

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Solution

The fourth proportional to 103,636.60, 143,018.50 and 58,924.60 is: 81,315.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,636.60 : 143,018.50 = 58,924.60 : x
  2. Step 2: Convert to fraction form
    103,636.60/143,018.50 = 58,924.60/x
  3. Step 3: Cross multiply
    103,636.60x = 143,018.50 × 58,924.60
  4. Step 4: Simplify right side
    103,636.60x = 8,427,307,905.10
  5. Step 5: Solve for x
    x = 8,427,307,905.10/103,636.60
  6. Step 6: Final answer
    x = 81,315.94

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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.