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Finding the Fourth Proportional to 245,673.28, 368,509.98 and 68,180.32

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Solution

The fourth proportional to 245,673.28, 368,509.98 and 68,180.32 is: 102,270.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,673.28 : 368,509.98 = 68,180.32 : x
  2. Step 2: Convert to fraction form
    245,673.28/368,509.98 = 68,180.32/x
  3. Step 3: Cross multiply
    245,673.28x = 368,509.98 × 68,180.32
  4. Step 4: Simplify right side
    245,673.28x = 25,125,128,359.59
  5. Step 5: Solve for x
    x = 25,125,128,359.59/245,673.28
  6. Step 6: Final answer
    x = 102,270.50

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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.