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Finding the Fourth Proportional to 113,021.60, 169,532.40 and 93,322.40

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Solution

The fourth proportional to 113,021.60, 169,532.40 and 93,322.40 is: 139,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,021.60 : 169,532.40 = 93,322.40 : x
  2. Step 2: Convert to fraction form
    113,021.60/169,532.40 = 93,322.40/x
  3. Step 3: Cross multiply
    113,021.60x = 169,532.40 × 93,322.40
  4. Step 4: Simplify right side
    113,021.60x = 15,821,170,445.76
  5. Step 5: Solve for x
    x = 15,821,170,445.76/113,021.60
  6. Step 6: Final answer
    x = 139,983.60

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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.