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Finding the Fourth Proportional to 103,446.30, 155,169.45 and 92,948.70

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Solution

The fourth proportional to 103,446.30, 155,169.45 and 92,948.70 is: 139,423.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,446.30 : 155,169.45 = 92,948.70 : x
  2. Step 2: Convert to fraction form
    103,446.30/155,169.45 = 92,948.70/x
  3. Step 3: Cross multiply
    103,446.30x = 155,169.45 × 92,948.70
  4. Step 4: Simplify right side
    103,446.30x = 14,422,798,657.22
  5. Step 5: Solve for x
    x = 14,422,798,657.22/103,446.30
  6. Step 6: Final answer
    x = 139,423.05

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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.