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Finding the Fourth Proportional to 70,605.19, 97,410.80 and 45,126.47

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Solution

The fourth proportional to 70,605.19, 97,410.80 and 45,126.47 is: 62,258.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,605.19 : 97,410.80 = 45,126.47 : x
  2. Step 2: Convert to fraction form
    70,605.19/97,410.80 = 45,126.47/x
  3. Step 3: Cross multiply
    70,605.19x = 97,410.80 × 45,126.47
  4. Step 4: Simplify right side
    70,605.19x = 4,395,805,000.41
  5. Step 5: Solve for x
    x = 4,395,805,000.41/70,605.19
  6. Step 6: Final answer
    x = 62,258.95

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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.