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Finding the Fourth Proportional to 88,365.71, 121,941.03 and 48,079.64

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Solution

The fourth proportional to 88,365.71, 121,941.03 and 48,079.64 is: 66,347.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,365.71 : 121,941.03 = 48,079.64 : x
  2. Step 2: Convert to fraction form
    88,365.71/121,941.03 = 48,079.64/x
  3. Step 3: Cross multiply
    88,365.71x = 121,941.03 × 48,079.64
  4. Step 4: Simplify right side
    88,365.71x = 5,862,880,823.63
  5. Step 5: Solve for x
    x = 5,862,880,823.63/88,365.71
  6. Step 6: Final answer
    x = 66,347.92

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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.