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Finding the Fourth Proportional to 108,528.30, 162,792.45 and 61,872.30

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Solution

The fourth proportional to 108,528.30, 162,792.45 and 61,872.30 is: 92,808.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,528.30 : 162,792.45 = 61,872.30 : x
  2. Step 2: Convert to fraction form
    108,528.30/162,792.45 = 61,872.30/x
  3. Step 3: Cross multiply
    108,528.30x = 162,792.45 × 61,872.30
  4. Step 4: Simplify right side
    108,528.30x = 10,072,343,304.14
  5. Step 5: Solve for x
    x = 10,072,343,304.14/108,528.30
  6. Step 6: Final answer
    x = 92,808.45

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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.