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Finding the Fourth Proportional to 114,087.40, 157,446.51 and 65,696.51

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Solution

The fourth proportional to 114,087.40, 157,446.51 and 65,696.51 is: 90,664.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,087.40 : 157,446.51 = 65,696.51 : x
  2. Step 2: Convert to fraction form
    114,087.40/157,446.51 = 65,696.51/x
  3. Step 3: Cross multiply
    114,087.40x = 157,446.51 × 65,696.51
  4. Step 4: Simplify right side
    114,087.40x = 10,343,686,218.68
  5. Step 5: Solve for x
    x = 10,343,686,218.68/114,087.40
  6. Step 6: Final answer
    x = 90,664.58

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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.