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Finding the Fourth Proportional to 108,007.80, 162,011.70 and 37,861.80

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Solution

The fourth proportional to 108,007.80, 162,011.70 and 37,861.80 is: 56,792.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,007.80 : 162,011.70 = 37,861.80 : x
  2. Step 2: Convert to fraction form
    108,007.80/162,011.70 = 37,861.80/x
  3. Step 3: Cross multiply
    108,007.80x = 162,011.70 × 37,861.80
  4. Step 4: Simplify right side
    108,007.80x = 6,134,054,583.06
  5. Step 5: Solve for x
    x = 6,134,054,583.06/108,007.80
  6. Step 6: Final answer
    x = 56,792.70

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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.