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Finding the Fourth Proportional to 191,925.90, 264,788.28 and 111,309.12

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Solution

The fourth proportional to 191,925.90, 264,788.28 and 111,309.12 is: 153,566.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,925.90 : 264,788.28 = 111,309.12 : x
  2. Step 2: Convert to fraction form
    191,925.90/264,788.28 = 111,309.12/x
  3. Step 3: Cross multiply
    191,925.90x = 264,788.28 × 111,309.12
  4. Step 4: Simplify right side
    191,925.90x = 29,473,350,433.11
  5. Step 5: Solve for x
    x = 29,473,350,433.11/191,925.90
  6. Step 6: Final answer
    x = 153,566.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.