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Finding the Fourth Proportional to 265,545.89, 366,448.70 and 144,688.17

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Solution

The fourth proportional to 265,545.89, 366,448.70 and 144,688.17 is: 199,667.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,545.89 : 366,448.70 = 144,688.17 : x
  2. Step 2: Convert to fraction form
    265,545.89/366,448.70 = 144,688.17/x
  3. Step 3: Cross multiply
    265,545.89x = 366,448.70 × 144,688.17
  4. Step 4: Simplify right side
    265,545.89x = 53,020,791,801.88
  5. Step 5: Solve for x
    x = 53,020,791,801.88/265,545.89
  6. Step 6: Final answer
    x = 199,667.15

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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.