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Finding the Fourth Proportional to 235,892.55, 325,533.83 and 128,463.06

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Solution

The fourth proportional to 235,892.55, 325,533.83 and 128,463.06 is: 177,280.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,892.55 : 325,533.83 = 128,463.06 : x
  2. Step 2: Convert to fraction form
    235,892.55/325,533.83 = 128,463.06/x
  3. Step 3: Cross multiply
    235,892.55x = 325,533.83 × 128,463.06
  4. Step 4: Simplify right side
    235,892.55x = 41,819,071,293.00
  5. Step 5: Solve for x
    x = 41,819,071,293.00/235,892.55
  6. Step 6: Final answer
    x = 177,280.17

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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.