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Finding the Fourth Proportional to 213,240.84, 319,166.80 and 157,058.80

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Solution

The fourth proportional to 213,240.84, 319,166.80 and 157,058.80 is: 235,076.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,240.84 : 319,166.80 = 157,058.80 : x
  2. Step 2: Convert to fraction form
    213,240.84/319,166.80 = 157,058.80/x
  3. Step 3: Cross multiply
    213,240.84x = 319,166.80 × 157,058.80
  4. Step 4: Simplify right side
    213,240.84x = 50,127,954,607.84
  5. Step 5: Solve for x
    x = 50,127,954,607.84/213,240.84
  6. Step 6: Final answer
    x = 235,076.71

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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.