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Finding the Fourth Proportional to 209,992.20, 314,988.30 and 183,748.20

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Solution

The fourth proportional to 209,992.20, 314,988.30 and 183,748.20 is: 275,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,992.20 : 314,988.30 = 183,748.20 : x
  2. Step 2: Convert to fraction form
    209,992.20/314,988.30 = 183,748.20/x
  3. Step 3: Cross multiply
    209,992.20x = 314,988.30 × 183,748.20
  4. Step 4: Simplify right side
    209,992.20x = 57,878,533,146.06
  5. Step 5: Solve for x
    x = 57,878,533,146.06/209,992.20
  6. Step 6: Final answer
    x = 275,622.30

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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.