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Finding the Fourth Proportional to 74,254.46, 102,461.96 and 47,412.68

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Solution

The fourth proportional to 74,254.46, 102,461.96 and 47,412.68 is: 65,423.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,254.46 : 102,461.96 = 47,412.68 : x
  2. Step 2: Convert to fraction form
    74,254.46/102,461.96 = 47,412.68/x
  3. Step 3: Cross multiply
    74,254.46x = 102,461.96 × 47,412.68
  4. Step 4: Simplify right side
    74,254.46x = 4,857,995,372.28
  5. Step 5: Solve for x
    x = 4,857,995,372.28/74,254.46
  6. Step 6: Final answer
    x = 65,423.62

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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.