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Finding the Fourth Proportional to 436,671.61, 655,068.93 and 152,320.69

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Solution

The fourth proportional to 436,671.61, 655,068.93 and 152,320.69 is: 228,502.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,671.61 : 655,068.93 = 152,320.69 : x
  2. Step 2: Convert to fraction form
    436,671.61/655,068.93 = 152,320.69/x
  3. Step 3: Cross multiply
    436,671.61x = 655,068.93 × 152,320.69
  4. Step 4: Simplify right side
    436,671.61x = 99,780,551,662.80
  5. Step 5: Solve for x
    x = 99,780,551,662.80/436,671.61
  6. Step 6: Final answer
    x = 228,502.49

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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.