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Finding the Fourth Proportional to 70,873.60, 97,840.56 and 48,329.68

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Solution

The fourth proportional to 70,873.60, 97,840.56 and 48,329.68 is: 66,718.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,873.60 : 97,840.56 = 48,329.68 : x
  2. Step 2: Convert to fraction form
    70,873.60/97,840.56 = 48,329.68/x
  3. Step 3: Cross multiply
    70,873.60x = 97,840.56 × 48,329.68
  4. Step 4: Simplify right side
    70,873.60x = 4,728,602,955.82
  5. Step 5: Solve for x
    x = 4,728,602,955.82/70,873.60
  6. Step 6: Final answer
    x = 66,718.82

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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.