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Finding the Fourth Proportional to 122,923.90, 171,699.80 and 122,923.90

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Solution

The fourth proportional to 122,923.90, 171,699.80 and 122,923.90 is: 171,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,923.90 : 171,699.80 = 122,923.90 : x
  2. Step 2: Convert to fraction form
    122,923.90/171,699.80 = 122,923.90/x
  3. Step 3: Cross multiply
    122,923.90x = 171,699.80 × 122,923.90
  4. Step 4: Simplify right side
    122,923.90x = 21,106,009,045.22
  5. Step 5: Solve for x
    x = 21,106,009,045.22/122,923.90
  6. Step 6: Final answer
    x = 171,699.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.