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Finding the Fourth Proportional to 615,316.64, 923,130.84 and 188,874.08

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Solution

The fourth proportional to 615,316.64, 923,130.84 and 188,874.08 is: 283,358.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,316.64 : 923,130.84 = 188,874.08 : x
  2. Step 2: Convert to fraction form
    615,316.64/923,130.84 = 188,874.08/x
  3. Step 3: Cross multiply
    615,316.64x = 923,130.84 × 188,874.08
  4. Step 4: Simplify right side
    615,316.64x = 174,355,487,678.99
  5. Step 5: Solve for x
    x = 174,355,487,678.99/615,316.64
  6. Step 6: Final answer
    x = 283,358.97

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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.