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Finding the Fourth Proportional to 108,637.20, 147,185.10 and 108,637.20

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Solution

The fourth proportional to 108,637.20, 147,185.10 and 108,637.20 is: 147,185.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,637.20 : 147,185.10 = 108,637.20 : x
  2. Step 2: Convert to fraction form
    108,637.20/147,185.10 = 108,637.20/x
  3. Step 3: Cross multiply
    108,637.20x = 147,185.10 × 108,637.20
  4. Step 4: Simplify right side
    108,637.20x = 15,989,777,145.72
  5. Step 5: Solve for x
    x = 15,989,777,145.72/108,637.20
  6. Step 6: Final answer
    x = 147,185.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.