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Finding the Fourth Proportional to 354,690.84, 531,955.98 and 101,970.84

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Solution

The fourth proportional to 354,690.84, 531,955.98 and 101,970.84 is: 152,933.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,690.84 : 531,955.98 = 101,970.84 : x
  2. Step 2: Convert to fraction form
    354,690.84/531,955.98 = 101,970.84/x
  3. Step 3: Cross multiply
    354,690.84x = 531,955.98 × 101,970.84
  4. Step 4: Simplify right side
    354,690.84x = 54,243,998,123.62
  5. Step 5: Solve for x
    x = 54,243,998,123.62/354,690.84
  6. Step 6: Final answer
    x = 152,933.18

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1.5x scale

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.