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Finding the Fourth Proportional to 268,683.64, 370,783.38 and 147,822.28

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Solution

The fourth proportional to 268,683.64, 370,783.38 and 147,822.28 is: 203,994.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,683.64 : 370,783.38 = 147,822.28 : x
  2. Step 2: Convert to fraction form
    268,683.64/370,783.38 = 147,822.28/x
  3. Step 3: Cross multiply
    268,683.64x = 370,783.38 × 147,822.28
  4. Step 4: Simplify right side
    268,683.64x = 54,810,044,617.71
  5. Step 5: Solve for x
    x = 54,810,044,617.71/268,683.64
  6. Step 6: Final answer
    x = 203,994.72

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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.