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Finding the Fourth Proportional to 113,320.40, 169,980.60 and 93,275.60

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Solution

The fourth proportional to 113,320.40, 169,980.60 and 93,275.60 is: 139,913.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,320.40 : 169,980.60 = 93,275.60 : x
  2. Step 2: Convert to fraction form
    113,320.40/169,980.60 = 93,275.60/x
  3. Step 3: Cross multiply
    113,320.40x = 169,980.60 × 93,275.60
  4. Step 4: Simplify right side
    113,320.40x = 15,855,042,453.36
  5. Step 5: Solve for x
    x = 15,855,042,453.36/113,320.40
  6. Step 6: Final answer
    x = 139,913.40

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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.