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Finding the Fourth Proportional to 74,689.68, 103,066.92 and 41,155.68

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Solution

The fourth proportional to 74,689.68, 103,066.92 and 41,155.68 is: 56,792.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,689.68 : 103,066.92 = 41,155.68 : x
  2. Step 2: Convert to fraction form
    74,689.68/103,066.92 = 41,155.68/x
  3. Step 3: Cross multiply
    74,689.68x = 103,066.92 × 41,155.68
  4. Step 4: Simplify right side
    74,689.68x = 4,241,789,178.11
  5. Step 5: Solve for x
    x = 4,241,789,178.11/74,689.68
  6. Step 6: Final answer
    x = 56,792.17

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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.