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Finding the Fourth Proportional to 98,807.79, 148,165.55 and 35,619.59

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Solution

The fourth proportional to 98,807.79, 148,165.55 and 35,619.59 is: 53,412.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,807.79 : 148,165.55 = 35,619.59 : x
  2. Step 2: Convert to fraction form
    98,807.79/148,165.55 = 35,619.59/x
  3. Step 3: Cross multiply
    98,807.79x = 148,165.55 × 35,619.59
  4. Step 4: Simplify right side
    98,807.79x = 5,277,596,143.12
  5. Step 5: Solve for x
    x = 5,277,596,143.12/98,807.79
  6. Step 6: Final answer
    x = 53,412.75

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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.