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Finding the Fourth Proportional to 586,728.20, 880,005.90 and 166,046.60

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Solution

The fourth proportional to 586,728.20, 880,005.90 and 166,046.60 is: 249,045.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,728.20 : 880,005.90 = 166,046.60 : x
  2. Step 2: Convert to fraction form
    586,728.20/880,005.90 = 166,046.60/x
  3. Step 3: Cross multiply
    586,728.20x = 880,005.90 × 166,046.60
  4. Step 4: Simplify right side
    586,728.20x = 146,121,987,674.94
  5. Step 5: Solve for x
    x = 146,121,987,674.94/586,728.20
  6. Step 6: Final answer
    x = 249,045.45

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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.