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Finding the Fourth Proportional to 475,370.71, 712,905.53 and 155,448.66

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Solution

The fourth proportional to 475,370.71, 712,905.53 and 155,448.66 is: 233,123.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,370.71 : 712,905.53 = 155,448.66 : x
  2. Step 2: Convert to fraction form
    475,370.71/712,905.53 = 155,448.66/x
  3. Step 3: Cross multiply
    475,370.71x = 712,905.53 × 155,448.66
  4. Step 4: Simplify right side
    475,370.71x = 110,820,212,115.64
  5. Step 5: Solve for x
    x = 110,820,212,115.64/475,370.71
  6. Step 6: Final answer
    x = 233,123.77

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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.