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Finding the Fourth Proportional to 210,061.70, 315,092.55 and 183,817.70

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Solution

The fourth proportional to 210,061.70, 315,092.55 and 183,817.70 is: 275,726.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,061.70 : 315,092.55 = 183,817.70 : x
  2. Step 2: Convert to fraction form
    210,061.70/315,092.55 = 183,817.70/x
  3. Step 3: Cross multiply
    210,061.70x = 315,092.55 × 183,817.70
  4. Step 4: Simplify right side
    210,061.70x = 57,919,587,828.14
  5. Step 5: Solve for x
    x = 57,919,587,828.14/210,061.70
  6. Step 6: Final answer
    x = 275,726.55

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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.