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Finding the Fourth Proportional to 98,280.84, 147,379.14 and 45,684.84

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Solution

The fourth proportional to 98,280.84, 147,379.14 and 45,684.84 is: 68,507.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,280.84 : 147,379.14 = 45,684.84 : x
  2. Step 2: Convert to fraction form
    98,280.84/147,379.14 = 45,684.84/x
  3. Step 3: Cross multiply
    98,280.84x = 147,379.14 × 45,684.84
  4. Step 4: Simplify right side
    98,280.84x = 6,732,992,430.24
  5. Step 5: Solve for x
    x = 6,732,992,430.24/98,280.84
  6. Step 6: Final answer
    x = 68,507.68

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1.5x scale

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.