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Finding the Fourth Proportional to 74,688.34, 103,069.80 and 41,154.34

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Solution

The fourth proportional to 74,688.34, 103,069.80 and 41,154.34 is: 56,792.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,688.34 : 103,069.80 = 41,154.34 : x
  2. Step 2: Convert to fraction form
    74,688.34/103,069.80 = 41,154.34/x
  3. Step 3: Cross multiply
    74,688.34x = 103,069.80 × 41,154.34
  4. Step 4: Simplify right side
    74,688.34x = 4,241,769,592.93
  5. Step 5: Solve for x
    x = 4,241,769,592.93/74,688.34
  6. Step 6: Final answer
    x = 56,792.93

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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.