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Finding the Fourth Proportional to 341,988.33, 513,037.63 and 105,330.94

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Solution

The fourth proportional to 341,988.33, 513,037.63 and 105,330.94 is: 158,013.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,988.33 : 513,037.63 = 105,330.94 : x
  2. Step 2: Convert to fraction form
    341,988.33/513,037.63 = 105,330.94/x
  3. Step 3: Cross multiply
    341,988.33x = 513,037.63 × 105,330.94
  4. Step 4: Simplify right side
    341,988.33x = 54,038,735,823.27
  5. Step 5: Solve for x
    x = 54,038,735,823.27/341,988.33
  6. Step 6: Final answer
    x = 158,013.39

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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.