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Finding the Fourth Proportional to 236,355.84, 354,487.68 and 70,145.28

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Solution

The fourth proportional to 236,355.84, 354,487.68 and 70,145.28 is: 105,204.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,355.84 : 354,487.68 = 70,145.28 : x
  2. Step 2: Convert to fraction form
    236,355.84/354,487.68 = 70,145.28/x
  3. Step 3: Cross multiply
    236,355.84x = 354,487.68 × 70,145.28
  4. Step 4: Simplify right side
    236,355.84x = 24,865,637,570.15
  5. Step 5: Solve for x
    x = 24,865,637,570.15/236,355.84
  6. Step 6: Final answer
    x = 105,204.24

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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.