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Finding the Fourth Proportional to 71,587.74, 98,803.95 and 41,368.89

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Solution

The fourth proportional to 71,587.74, 98,803.95 and 41,368.89 is: 57,096.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,587.74 : 98,803.95 = 41,368.89 : x
  2. Step 2: Convert to fraction form
    71,587.74/98,803.95 = 41,368.89/x
  3. Step 3: Cross multiply
    71,587.74x = 98,803.95 × 41,368.89
  4. Step 4: Simplify right side
    71,587.74x = 4,087,409,739.12
  5. Step 5: Solve for x
    x = 4,087,409,739.12/71,587.74
  6. Step 6: Final answer
    x = 57,096.50

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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.