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Finding the Fourth Proportional to 88,365.72, 121,941.02 and 48,079.64

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Solution

The fourth proportional to 88,365.72, 121,941.02 and 48,079.64 is: 66,347.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,365.72 : 121,941.02 = 48,079.64 : x
  2. Step 2: Convert to fraction form
    88,365.72/121,941.02 = 48,079.64/x
  3. Step 3: Cross multiply
    88,365.72x = 121,941.02 × 48,079.64
  4. Step 4: Simplify right side
    88,365.72x = 5,862,880,342.83
  5. Step 5: Solve for x
    x = 5,862,880,342.83/88,365.72
  6. Step 6: Final answer
    x = 66,347.90

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1.5x scale

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.