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Finding the Fourth Proportional to 247,197.34, 341,130.27 and 139,788.46

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Solution

The fourth proportional to 247,197.34, 341,130.27 and 139,788.46 is: 192,906.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,197.34 : 341,130.27 = 139,788.46 : x
  2. Step 2: Convert to fraction form
    247,197.34/341,130.27 = 139,788.46/x
  3. Step 3: Cross multiply
    247,197.34x = 341,130.27 × 139,788.46
  4. Step 4: Simplify right side
    247,197.34x = 47,686,075,102.68
  5. Step 5: Solve for x
    x = 47,686,075,102.68/247,197.34
  6. Step 6: Final answer
    x = 192,906.91

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1.5x scale

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.