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Finding the Fourth Proportional to 341,987.33, 513,036.13 and 105,329.94

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Solution

The fourth proportional to 341,987.33, 513,036.13 and 105,329.94 is: 158,011.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,987.33 : 513,036.13 = 105,329.94 : x
  2. Step 2: Convert to fraction form
    341,987.33/513,036.13 = 105,329.94/x
  3. Step 3: Cross multiply
    341,987.33x = 513,036.13 × 105,329.94
  4. Step 4: Simplify right side
    341,987.33x = 54,038,064,790.73
  5. Step 5: Solve for x
    x = 54,038,064,790.73/341,987.33
  6. Step 6: Final answer
    x = 158,011.89

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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.