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Finding the Fourth Proportional to 98,580.39, 136,041.01 and 53,258.36

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Solution

The fourth proportional to 98,580.39, 136,041.01 and 53,258.36 is: 73,496.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,580.39 : 136,041.01 = 53,258.36 : x
  2. Step 2: Convert to fraction form
    98,580.39/136,041.01 = 53,258.36/x
  3. Step 3: Cross multiply
    98,580.39x = 136,041.01 × 53,258.36
  4. Step 4: Simplify right side
    98,580.39x = 7,245,320,271.99
  5. Step 5: Solve for x
    x = 7,245,320,271.99/98,580.39
  6. Step 6: Final answer
    x = 73,496.57

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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.