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Finding the Fourth Proportional to 245,623.82, 368,435.70 and 68,130.84

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Solution

The fourth proportional to 245,623.82, 368,435.70 and 68,130.84 is: 102,196.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,623.82 : 368,435.70 = 68,130.84 : x
  2. Step 2: Convert to fraction form
    245,623.82/368,435.70 = 68,130.84/x
  3. Step 3: Cross multiply
    245,623.82x = 368,435.70 × 68,130.84
  4. Step 4: Simplify right side
    245,623.82x = 25,101,833,726.99
  5. Step 5: Solve for x
    x = 25,101,833,726.99/245,623.82
  6. Step 6: Final answer
    x = 102,196.25

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1.5x scale

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.