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Finding the Fourth Proportional to 472,485.66, 708,865.38 and 152,686.32

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Solution

The fourth proportional to 472,485.66, 708,865.38 and 152,686.32 is: 229,073.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,485.66 : 708,865.38 = 152,686.32 : x
  2. Step 2: Convert to fraction form
    472,485.66/708,865.38 = 152,686.32/x
  3. Step 3: Cross multiply
    472,485.66x = 708,865.38 × 152,686.32
  4. Step 4: Simplify right side
    472,485.66x = 108,234,046,247.60
  5. Step 5: Solve for x
    x = 108,234,046,247.60/472,485.66
  6. Step 6: Final answer
    x = 229,073.72

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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.