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Finding the Fourth Proportional to 88,409.88, 121,999.14 and 52,593.21

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Solution

The fourth proportional to 88,409.88, 121,999.14 and 52,593.21 is: 72,574.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,409.88 : 121,999.14 = 52,593.21 : x
  2. Step 2: Convert to fraction form
    88,409.88/121,999.14 = 52,593.21/x
  3. Step 3: Cross multiply
    88,409.88x = 121,999.14 × 52,593.21
  4. Step 4: Simplify right side
    88,409.88x = 6,416,326,389.84
  5. Step 5: Solve for x
    x = 6,416,326,389.84/88,409.88
  6. Step 6: Final answer
    x = 72,574.77

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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.