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Finding the Fourth Proportional to 125,965, 173,831.70 and 69,376.24

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Solution

The fourth proportional to 125,965, 173,831.70 and 69,376.24 is: 95,739.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,965 : 173,831.70 = 69,376.24 : x
  2. Step 2: Convert to fraction form
    125,965/173,831.70 = 69,376.24/x
  3. Step 3: Cross multiply
    125,965x = 173,831.70 × 69,376.24
  4. Step 4: Simplify right side
    125,965x = 12,059,789,738.81
  5. Step 5: Solve for x
    x = 12,059,789,738.81/125,965
  6. Step 6: Final answer
    x = 95,739.21

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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.