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Finding the Fourth Proportional to 265,545.39, 366,448.01 and 144,687.66

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Solution

The fourth proportional to 265,545.39, 366,448.01 and 144,687.66 is: 199,666.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,545.39 : 366,448.01 = 144,687.66 : x
  2. Step 2: Convert to fraction form
    265,545.39/366,448.01 = 144,687.66/x
  3. Step 3: Cross multiply
    265,545.39x = 366,448.01 × 144,687.66
  4. Step 4: Simplify right side
    265,545.39x = 53,020,504,355.12
  5. Step 5: Solve for x
    x = 53,020,504,355.12/265,545.39
  6. Step 6: Final answer
    x = 199,666.45

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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.