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Finding the Fourth Proportional to 88,013.64, 121,459.86 and 48,269.64

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Solution

The fourth proportional to 88,013.64, 121,459.86 and 48,269.64 is: 66,612.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,013.64 : 121,459.86 = 48,269.64 : x
  2. Step 2: Convert to fraction form
    88,013.64/121,459.86 = 48,269.64/x
  3. Step 3: Cross multiply
    88,013.64x = 121,459.86 × 48,269.64
  4. Step 4: Simplify right side
    88,013.64x = 5,862,823,716.65
  5. Step 5: Solve for x
    x = 5,862,823,716.65/88,013.64
  6. Step 6: Final answer
    x = 66,612.67

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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.