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Finding the Fourth Proportional to 160,703.23, 240,907.23 and 85,875.03

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Solution

The fourth proportional to 160,703.23, 240,907.23 and 85,875.03 is: 128,733.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,703.23 : 240,907.23 = 85,875.03 : x
  2. Step 2: Convert to fraction form
    160,703.23/240,907.23 = 85,875.03/x
  3. Step 3: Cross multiply
    160,703.23x = 240,907.23 × 85,875.03
  4. Step 4: Simplify right side
    160,703.23x = 20,687,915,603.47
  5. Step 5: Solve for x
    x = 20,687,915,603.47/160,703.23
  6. Step 6: Final answer
    x = 128,733.66

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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.