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Finding the Fourth Proportional to 153,280.61, 231,360.59 and 153,280.61

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Solution

The fourth proportional to 153,280.61, 231,360.59 and 153,280.61 is: 231,360.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,280.61 : 231,360.59 = 153,280.61 : x
  2. Step 2: Convert to fraction form
    153,280.61/231,360.59 = 153,280.61/x
  3. Step 3: Cross multiply
    153,280.61x = 231,360.59 × 153,280.61
  4. Step 4: Simplify right side
    153,280.61x = 35,463,092,365.16
  5. Step 5: Solve for x
    x = 35,463,092,365.16/153,280.61
  6. Step 6: Final answer
    x = 231,360.59

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.