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Finding the Fourth Proportional to 352,372.32, 528,409.44 and 141,953.76

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Solution

The fourth proportional to 352,372.32, 528,409.44 and 141,953.76 is: 212,870.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,372.32 : 528,409.44 = 141,953.76 : x
  2. Step 2: Convert to fraction form
    352,372.32/528,409.44 = 141,953.76/x
  3. Step 3: Cross multiply
    352,372.32x = 528,409.44 × 141,953.76
  4. Step 4: Simplify right side
    352,372.32x = 75,009,706,827.49
  5. Step 5: Solve for x
    x = 75,009,706,827.49/352,372.32
  6. Step 6: Final answer
    x = 212,870.60

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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.