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Finding the Fourth Proportional to 192,465, 265,718.34 and 125,513.64

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Solution

The fourth proportional to 192,465, 265,718.34 and 125,513.64 is: 173,284.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,465 : 265,718.34 = 125,513.64 : x
  2. Step 2: Convert to fraction form
    192,465/265,718.34 = 125,513.64/x
  3. Step 3: Cross multiply
    192,465x = 265,718.34 × 125,513.64
  4. Step 4: Simplify right side
    192,465x = 33,351,276,068.16
  5. Step 5: Solve for x
    x = 33,351,276,068.16/192,465
  6. Step 6: Final answer
    x = 173,284.89

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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.