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Finding the Fourth Proportional to 186,838.75, 257,838.19 and 101,955.81

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Solution

The fourth proportional to 186,838.75, 257,838.19 and 101,955.81 is: 140,699.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,838.75 : 257,838.19 = 101,955.81 : x
  2. Step 2: Convert to fraction form
    186,838.75/257,838.19 = 101,955.81/x
  3. Step 3: Cross multiply
    186,838.75x = 257,838.19 × 101,955.81
  4. Step 4: Simplify right side
    186,838.75x = 26,288,102,222.39
  5. Step 5: Solve for x
    x = 26,288,102,222.39/186,838.75
  6. Step 6: Final answer
    x = 140,699.41

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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.