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Finding the Fourth Proportional to 131,424.60, 197,136.90 and 101,933.40

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Solution

The fourth proportional to 131,424.60, 197,136.90 and 101,933.40 is: 152,900.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,424.60 : 197,136.90 = 101,933.40 : x
  2. Step 2: Convert to fraction form
    131,424.60/197,136.90 = 101,933.40/x
  3. Step 3: Cross multiply
    131,424.60x = 197,136.90 × 101,933.40
  4. Step 4: Simplify right side
    131,424.60x = 20,094,834,482.46
  5. Step 5: Solve for x
    x = 20,094,834,482.46/131,424.60
  6. Step 6: Final answer
    x = 152,900.10

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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.