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Finding the Fourth Proportional to 410,068.48, 615,193 and 125,798.16

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Solution

The fourth proportional to 410,068.48, 615,193 and 125,798.16 is: 188,724.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,068.48 : 615,193 = 125,798.16 : x
  2. Step 2: Convert to fraction form
    410,068.48/615,193 = 125,798.16/x
  3. Step 3: Cross multiply
    410,068.48x = 615,193 × 125,798.16
  4. Step 4: Simplify right side
    410,068.48x = 77,390,147,444.88
  5. Step 5: Solve for x
    x = 77,390,147,444.88/410,068.48
  6. Step 6: Final answer
    x = 188,724.94

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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.