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Finding the Fourth Proportional to 113,028.48, 155,980.08 and 62,727.48

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Solution

The fourth proportional to 113,028.48, 155,980.08 and 62,727.48 is: 86,564.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,028.48 : 155,980.08 = 62,727.48 : x
  2. Step 2: Convert to fraction form
    113,028.48/155,980.08 = 62,727.48/x
  3. Step 3: Cross multiply
    113,028.48x = 155,980.08 × 62,727.48
  4. Step 4: Simplify right side
    113,028.48x = 9,784,237,348.60
  5. Step 5: Solve for x
    x = 9,784,237,348.60/113,028.48
  6. Step 6: Final answer
    x = 86,564.35

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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.