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Finding the Fourth Proportional to 73,113.76, 100,898.80 and 41,283.12

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Solution

The fourth proportional to 73,113.76, 100,898.80 and 41,283.12 is: 56,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,113.76 : 100,898.80 = 41,283.12 : x
  2. Step 2: Convert to fraction form
    73,113.76/100,898.80 = 41,283.12/x
  3. Step 3: Cross multiply
    73,113.76x = 100,898.80 × 41,283.12
  4. Step 4: Simplify right side
    73,113.76x = 4,165,417,268.26
  5. Step 5: Solve for x
    x = 4,165,417,268.26/73,113.76
  6. Step 6: Final answer
    x = 56,971.73

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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.