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Finding the Fourth Proportional to 191,157.54, 263,870.55 and 127,472.10

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Solution

The fourth proportional to 191,157.54, 263,870.55 and 127,472.10 is: 175,960.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,157.54 : 263,870.55 = 127,472.10 : x
  2. Step 2: Convert to fraction form
    191,157.54/263,870.55 = 127,472.10/x
  3. Step 3: Cross multiply
    191,157.54x = 263,870.55 × 127,472.10
  4. Step 4: Simplify right side
    191,157.54x = 33,636,133,136.66
  5. Step 5: Solve for x
    x = 33,636,133,136.66/191,157.54
  6. Step 6: Final answer
    x = 175,960.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.