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Finding the Fourth Proportional to 77,411.10, 106,835.67 and 43,873.50

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Solution

The fourth proportional to 77,411.10, 106,835.67 and 43,873.50 is: 60,550.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,411.10 : 106,835.67 = 43,873.50 : x
  2. Step 2: Convert to fraction form
    77,411.10/106,835.67 = 43,873.50/x
  3. Step 3: Cross multiply
    77,411.10x = 106,835.67 × 43,873.50
  4. Step 4: Simplify right side
    77,411.10x = 4,687,254,767.75
  5. Step 5: Solve for x
    x = 4,687,254,767.75/77,411.10
  6. Step 6: Final answer
    x = 60,550.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.