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Finding the Fourth Proportional to 74,659.79, 103,030.51 and 41,125.79

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Solution

The fourth proportional to 74,659.79, 103,030.51 and 41,125.79 is: 56,753.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,659.79 : 103,030.51 = 41,125.79 : x
  2. Step 2: Convert to fraction form
    74,659.79/103,030.51 = 41,125.79/x
  3. Step 3: Cross multiply
    74,659.79x = 103,030.51 × 41,125.79
  4. Step 4: Simplify right side
    74,659.79x = 4,237,210,499.89
  5. Step 5: Solve for x
    x = 4,237,210,499.89/74,659.79
  6. Step 6: Final answer
    x = 56,753.59

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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.