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Finding the Fourth Proportional to 369,111.70, 553,667.55 and 200,712.70

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Solution

The fourth proportional to 369,111.70, 553,667.55 and 200,712.70 is: 301,069.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,111.70 : 553,667.55 = 200,712.70 : x
  2. Step 2: Convert to fraction form
    369,111.70/553,667.55 = 200,712.70/x
  3. Step 3: Cross multiply
    369,111.70x = 553,667.55 × 200,712.70
  4. Step 4: Simplify right side
    369,111.70x = 111,128,108,862.89
  5. Step 5: Solve for x
    x = 111,128,108,862.89/369,111.70
  6. Step 6: Final answer
    x = 301,069.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.