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Finding the Fourth Proportional to 88,304.01, 121,904.67 and 68,115.57

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Solution

The fourth proportional to 88,304.01, 121,904.67 and 68,115.57 is: 94,034.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,304.01 : 121,904.67 = 68,115.57 : x
  2. Step 2: Convert to fraction form
    88,304.01/121,904.67 = 68,115.57/x
  3. Step 3: Cross multiply
    88,304.01x = 121,904.67 × 68,115.57
  4. Step 4: Simplify right side
    88,304.01x = 8,303,606,082.71
  5. Step 5: Solve for x
    x = 8,303,606,082.71/88,304.01
  6. Step 6: Final answer
    x = 94,034.30

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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.