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Finding the Fourth Proportional to 103,395.56, 155,094.16 and 56,622.92

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Solution

The fourth proportional to 103,395.56, 155,094.16 and 56,622.92 is: 84,934.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,395.56 : 155,094.16 = 56,622.92 : x
  2. Step 2: Convert to fraction form
    103,395.56/155,094.16 = 56,622.92/x
  3. Step 3: Cross multiply
    103,395.56x = 155,094.16 × 56,622.92
  4. Step 4: Simplify right side
    103,395.56x = 8,781,884,214.15
  5. Step 5: Solve for x
    x = 8,781,884,214.15/103,395.56
  6. Step 6: Final answer
    x = 84,934.83

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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.