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Finding the Fourth Proportional to 207,089.42, 285,642.90 and 134,362.37

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Solution

The fourth proportional to 207,089.42, 285,642.90 and 134,362.37 is: 185,328.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,089.42 : 285,642.90 = 134,362.37 : x
  2. Step 2: Convert to fraction form
    207,089.42/285,642.90 = 134,362.37/x
  3. Step 3: Cross multiply
    207,089.42x = 285,642.90 × 134,362.37
  4. Step 4: Simplify right side
    207,089.42x = 38,379,657,731.78
  5. Step 5: Solve for x
    x = 38,379,657,731.78/207,089.42
  6. Step 6: Final answer
    x = 185,328.92

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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.