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Finding the Fourth Proportional to 123,041.40, 172,374.60 and 123,041.40

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Solution

The fourth proportional to 123,041.40, 172,374.60 and 123,041.40 is: 172,374.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,041.40 : 172,374.60 = 123,041.40 : x
  2. Step 2: Convert to fraction form
    123,041.40/172,374.60 = 123,041.40/x
  3. Step 3: Cross multiply
    123,041.40x = 172,374.60 × 123,041.40
  4. Step 4: Simplify right side
    123,041.40x = 21,209,212,108.44
  5. Step 5: Solve for x
    x = 21,209,212,108.44/123,041.40
  6. Step 6: Final answer
    x = 172,374.60

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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.