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Finding the Fourth Proportional to 60,095.88, 90,148.68 and 20,653.02

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Solution

The fourth proportional to 60,095.88, 90,148.68 and 20,653.02 is: 30,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,095.88 : 90,148.68 = 20,653.02 : x
  2. Step 2: Convert to fraction form
    60,095.88/90,148.68 = 20,653.02/x
  3. Step 3: Cross multiply
    60,095.88x = 90,148.68 × 20,653.02
  4. Step 4: Simplify right side
    60,095.88x = 1,861,842,491.01
  5. Step 5: Solve for x
    x = 1,861,842,491.01/60,095.88
  6. Step 6: Final answer
    x = 30,981.20

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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.