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Finding the Fourth Proportional to 472,607.10, 708,975.45 and 157,031.10

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Solution

The fourth proportional to 472,607.10, 708,975.45 and 157,031.10 is: 235,568.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,607.10 : 708,975.45 = 157,031.10 : x
  2. Step 2: Convert to fraction form
    472,607.10/708,975.45 = 157,031.10/x
  3. Step 3: Cross multiply
    472,607.10x = 708,975.45 × 157,031.10
  4. Step 4: Simplify right side
    472,607.10x = 111,331,194,786.50
  5. Step 5: Solve for x
    x = 111,331,194,786.50/472,607.10
  6. Step 6: Final answer
    x = 235,568.18

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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.