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Finding the Fourth Proportional to 74,111.96, 102,284.70 and 45,448.76

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Solution

The fourth proportional to 74,111.96, 102,284.70 and 45,448.76 is: 62,725.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,111.96 : 102,284.70 = 45,448.76 : x
  2. Step 2: Convert to fraction form
    74,111.96/102,284.70 = 45,448.76/x
  3. Step 3: Cross multiply
    74,111.96x = 102,284.70 × 45,448.76
  4. Step 4: Simplify right side
    74,111.96x = 4,648,712,781.97
  5. Step 5: Solve for x
    x = 4,648,712,781.97/74,111.96
  6. Step 6: Final answer
    x = 62,725.54

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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.