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Finding the Fourth Proportional to 281,765.53, 388,876.30 and 174,370.16

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Solution

The fourth proportional to 281,765.53, 388,876.30 and 174,370.16 is: 240,655.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,765.53 : 388,876.30 = 174,370.16 : x
  2. Step 2: Convert to fraction form
    281,765.53/388,876.30 = 174,370.16/x
  3. Step 3: Cross multiply
    281,765.53x = 388,876.30 × 174,370.16
  4. Step 4: Simplify right side
    281,765.53x = 67,808,421,980.88
  5. Step 5: Solve for x
    x = 67,808,421,980.88/281,765.53
  6. Step 6: Final answer
    x = 240,655.49

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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.