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Finding the Fourth Proportional to 472,339.04, 708,376.82 and 130,700.16

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Solution

The fourth proportional to 472,339.04, 708,376.82 and 130,700.16 is: 196,013.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,339.04 : 708,376.82 = 130,700.16 : x
  2. Step 2: Convert to fraction form
    472,339.04/708,376.82 = 130,700.16/x
  3. Step 3: Cross multiply
    472,339.04x = 708,376.82 × 130,700.16
  4. Step 4: Simplify right side
    472,339.04x = 92,584,963,060.79
  5. Step 5: Solve for x
    x = 92,584,963,060.79/472,339.04
  6. Step 6: Final answer
    x = 196,013.79

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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.