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Finding the Fourth Proportional to 98,873.62, 148,332.47 and 54,477.52

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Solution

The fourth proportional to 98,873.62, 148,332.47 and 54,477.52 is: 81,728.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,873.62 : 148,332.47 = 54,477.52 : x
  2. Step 2: Convert to fraction form
    98,873.62/148,332.47 = 54,477.52/x
  3. Step 3: Cross multiply
    98,873.62x = 148,332.47 × 54,477.52
  4. Step 4: Simplify right side
    98,873.62x = 8,080,784,457.86
  5. Step 5: Solve for x
    x = 8,080,784,457.86/98,873.62
  6. Step 6: Final answer
    x = 81,728.42

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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.