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Finding the Fourth Proportional to 93,106.98, 128,465.24 and 54,868.10

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Solution

The fourth proportional to 93,106.98, 128,465.24 and 54,868.10 is: 75,704.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,106.98 : 128,465.24 = 54,868.10 : x
  2. Step 2: Convert to fraction form
    93,106.98/128,465.24 = 54,868.10/x
  3. Step 3: Cross multiply
    93,106.98x = 128,465.24 × 54,868.10
  4. Step 4: Simplify right side
    93,106.98x = 7,048,643,634.84
  5. Step 5: Solve for x
    x = 7,048,643,634.84/93,106.98
  6. Step 6: Final answer
    x = 75,704.78

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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.