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Finding the Fourth Proportional to 356,953.33, 535,447.74 and 117,091.40

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Solution

The fourth proportional to 356,953.33, 535,447.74 and 117,091.40 is: 175,642.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,953.33 : 535,447.74 = 117,091.40 : x
  2. Step 2: Convert to fraction form
    356,953.33/535,447.74 = 117,091.40/x
  3. Step 3: Cross multiply
    356,953.33x = 535,447.74 × 117,091.40
  4. Step 4: Simplify right side
    356,953.33x = 62,696,325,503.44
  5. Step 5: Solve for x
    x = 62,696,325,503.44/356,953.33
  6. Step 6: Final answer
    x = 175,642.92

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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.