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Finding the Fourth Proportional to 70,459.31, 97,284.88 and 45,352.55

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Solution

The fourth proportional to 70,459.31, 97,284.88 and 45,352.55 is: 62,619.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,459.31 : 97,284.88 = 45,352.55 : x
  2. Step 2: Convert to fraction form
    70,459.31/97,284.88 = 45,352.55/x
  3. Step 3: Cross multiply
    70,459.31x = 97,284.88 × 45,352.55
  4. Step 4: Simplify right side
    70,459.31x = 4,412,117,684.35
  5. Step 5: Solve for x
    x = 4,412,117,684.35/70,459.31
  6. Step 6: Final answer
    x = 62,619.37

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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.