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Finding the Fourth Proportional to 94,417.80, 141,497.10 and 76,921.80

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Solution

The fourth proportional to 94,417.80, 141,497.10 and 76,921.80 is: 115,277.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,417.80 : 141,497.10 = 76,921.80 : x
  2. Step 2: Convert to fraction form
    94,417.80/141,497.10 = 76,921.80/x
  3. Step 3: Cross multiply
    94,417.80x = 141,497.10 × 76,921.80
  4. Step 4: Simplify right side
    94,417.80x = 10,884,211,626.78
  5. Step 5: Solve for x
    x = 10,884,211,626.78/94,417.80
  6. Step 6: Final answer
    x = 115,277.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.