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Finding the Fourth Proportional to 88,425.72, 121,992.21 and 52,602.66

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Solution

The fourth proportional to 88,425.72, 121,992.21 and 52,602.66 is: 72,570.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,425.72 : 121,992.21 = 52,602.66 : x
  2. Step 2: Convert to fraction form
    88,425.72/121,992.21 = 52,602.66/x
  3. Step 3: Cross multiply
    88,425.72x = 121,992.21 × 52,602.66
  4. Step 4: Simplify right side
    88,425.72x = 6,417,114,745.28
  5. Step 5: Solve for x
    x = 6,417,114,745.28/88,425.72
  6. Step 6: Final answer
    x = 72,570.68

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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.