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Finding the Fourth Proportional to 98,747.80, 148,121.70 and 24,875.80

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Solution

The fourth proportional to 98,747.80, 148,121.70 and 24,875.80 is: 37,313.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,747.80 : 148,121.70 = 24,875.80 : x
  2. Step 2: Convert to fraction form
    98,747.80/148,121.70 = 24,875.80/x
  3. Step 3: Cross multiply
    98,747.80x = 148,121.70 × 24,875.80
  4. Step 4: Simplify right side
    98,747.80x = 3,684,645,784.86
  5. Step 5: Solve for x
    x = 3,684,645,784.86/98,747.80
  6. Step 6: Final answer
    x = 37,313.70

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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.