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Finding the Fourth Proportional to 70,607.25, 97,446.65 and 40,799.25

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Solution

The fourth proportional to 70,607.25, 97,446.65 and 40,799.25 is: 56,307.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,607.25 : 97,446.65 = 40,799.25 : x
  2. Step 2: Convert to fraction form
    70,607.25/97,446.65 = 40,799.25/x
  3. Step 3: Cross multiply
    70,607.25x = 97,446.65 × 40,799.25
  4. Step 4: Simplify right side
    70,607.25x = 3,975,750,031.02
  5. Step 5: Solve for x
    x = 3,975,750,031.02/70,607.25
  6. Step 6: Final answer
    x = 56,307.96

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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.