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Finding the Fourth Proportional to 98,881.36, 148,313.40 and 36,552.40

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Solution

The fourth proportional to 98,881.36, 148,313.40 and 36,552.40 is: 54,825.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,881.36 : 148,313.40 = 36,552.40 : x
  2. Step 2: Convert to fraction form
    98,881.36/148,313.40 = 36,552.40/x
  3. Step 3: Cross multiply
    98,881.36x = 148,313.40 × 36,552.40
  4. Step 4: Simplify right side
    98,881.36x = 5,421,210,722.16
  5. Step 5: Solve for x
    x = 5,421,210,722.16/98,881.36
  6. Step 6: Final answer
    x = 54,825.41

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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.