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Finding the Fourth Proportional to 93,658.80, 129,251.64 and 55,954.80

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Solution

The fourth proportional to 93,658.80, 129,251.64 and 55,954.80 is: 77,219.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,658.80 : 129,251.64 = 55,954.80 : x
  2. Step 2: Convert to fraction form
    93,658.80/129,251.64 = 55,954.80/x
  3. Step 3: Cross multiply
    93,658.80x = 129,251.64 × 55,954.80
  4. Step 4: Simplify right side
    93,658.80x = 7,232,249,665.87
  5. Step 5: Solve for x
    x = 7,232,249,665.87/93,658.80
  6. Step 6: Final answer
    x = 77,219.12

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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.