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Finding the Fourth Proportional to 265,866.72, 366,894.66 and 145,005.84

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Solution

The fourth proportional to 265,866.72, 366,894.66 and 145,005.84 is: 200,107.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,866.72 : 366,894.66 = 145,005.84 : x
  2. Step 2: Convert to fraction form
    265,866.72/366,894.66 = 145,005.84/x
  3. Step 3: Cross multiply
    265,866.72x = 366,894.66 × 145,005.84
  4. Step 4: Simplify right side
    265,866.72x = 53,201,868,364.81
  5. Step 5: Solve for x
    x = 53,201,868,364.81/265,866.72
  6. Step 6: Final answer
    x = 200,107.29

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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.