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Finding the Fourth Proportional to 281,783.53, 388,862.64 and 168,606.28

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Solution

The fourth proportional to 281,783.53, 388,862.64 and 168,606.28 is: 232,677.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,783.53 : 388,862.64 = 168,606.28 : x
  2. Step 2: Convert to fraction form
    281,783.53/388,862.64 = 168,606.28/x
  3. Step 3: Cross multiply
    281,783.53x = 388,862.64 × 168,606.28
  4. Step 4: Simplify right side
    281,783.53x = 65,564,683,647.46
  5. Step 5: Solve for x
    x = 65,564,683,647.46/281,783.53
  6. Step 6: Final answer
    x = 232,677.49

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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.