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Finding the Fourth Proportional to 71,373.30, 107,059.95 and 64,812.30

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Solution

The fourth proportional to 71,373.30, 107,059.95 and 64,812.30 is: 97,218.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,373.30 : 107,059.95 = 64,812.30 : x
  2. Step 2: Convert to fraction form
    71,373.30/107,059.95 = 64,812.30/x
  3. Step 3: Cross multiply
    71,373.30x = 107,059.95 × 64,812.30
  4. Step 4: Simplify right side
    71,373.30x = 6,938,801,597.39
  5. Step 5: Solve for x
    x = 6,938,801,597.39/71,373.30
  6. Step 6: Final answer
    x = 97,218.45

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1.5x scale

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.