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Finding the Fourth Proportional to 71,291.08, 106,641.19 and 64,795.69

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Solution

The fourth proportional to 71,291.08, 106,641.19 and 64,795.69 is: 96,925.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,291.08 : 106,641.19 = 64,795.69 : x
  2. Step 2: Convert to fraction form
    71,291.08/106,641.19 = 64,795.69/x
  3. Step 3: Cross multiply
    71,291.08x = 106,641.19 × 64,795.69
  4. Step 4: Simplify right side
    71,291.08x = 6,909,889,488.47
  5. Step 5: Solve for x
    x = 6,909,889,488.47/71,291.08
  6. Step 6: Final answer
    x = 96,925.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.