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Finding the Fourth Proportional to 88,904.30, 133,356.45 and 82,424.30

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Solution

The fourth proportional to 88,904.30, 133,356.45 and 82,424.30 is: 123,636.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,904.30 : 133,356.45 = 82,424.30 : x
  2. Step 2: Convert to fraction form
    88,904.30/133,356.45 = 82,424.30/x
  3. Step 3: Cross multiply
    88,904.30x = 133,356.45 × 82,424.30
  4. Step 4: Simplify right side
    88,904.30x = 10,991,812,041.74
  5. Step 5: Solve for x
    x = 10,991,812,041.74/88,904.30
  6. Step 6: Final answer
    x = 123,636.45

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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.