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Finding the Fourth Proportional to 193,555.92, 290,061.60 and 153,937.20

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Solution

The fourth proportional to 193,555.92, 290,061.60 and 153,937.20 is: 230,689.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,555.92 : 290,061.60 = 153,937.20 : x
  2. Step 2: Convert to fraction form
    193,555.92/290,061.60 = 153,937.20/x
  3. Step 3: Cross multiply
    193,555.92x = 290,061.60 × 153,937.20
  4. Step 4: Simplify right side
    193,555.92x = 44,651,270,531.52
  5. Step 5: Solve for x
    x = 44,651,270,531.52/193,555.92
  6. Step 6: Final answer
    x = 230,689.25

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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.