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Finding the Fourth Proportional to 77,410.95, 106,831.41 and 58,256.25

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Solution

The fourth proportional to 77,410.95, 106,831.41 and 58,256.25 is: 80,396.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,410.95 : 106,831.41 = 58,256.25 : x
  2. Step 2: Convert to fraction form
    77,410.95/106,831.41 = 58,256.25/x
  3. Step 3: Cross multiply
    77,410.95x = 106,831.41 × 58,256.25
  4. Step 4: Simplify right side
    77,410.95x = 6,223,597,328.81
  5. Step 5: Solve for x
    x = 6,223,597,328.81/77,410.95
  6. Step 6: Final answer
    x = 80,396.86

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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.