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Finding the Fourth Proportional to 247,307.63, 341,284.54 and 139,875.36

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Solution

The fourth proportional to 247,307.63, 341,284.54 and 139,875.36 is: 193,028.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,307.63 : 341,284.54 = 139,875.36 : x
  2. Step 2: Convert to fraction form
    247,307.63/341,284.54 = 139,875.36/x
  3. Step 3: Cross multiply
    247,307.63x = 341,284.54 × 139,875.36
  4. Step 4: Simplify right side
    247,307.63x = 47,737,296,527.70
  5. Step 5: Solve for x
    x = 47,737,296,527.70/247,307.63
  6. Step 6: Final answer
    x = 193,028.00

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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.