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Finding the Fourth Proportional to 191,740.88, 264,603.30 and 111,216.08

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Solution

The fourth proportional to 191,740.88, 264,603.30 and 111,216.08 is: 153,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,740.88 : 264,603.30 = 111,216.08 : x
  2. Step 2: Convert to fraction form
    191,740.88/264,603.30 = 111,216.08/x
  3. Step 3: Cross multiply
    191,740.88x = 264,603.30 × 111,216.08
  4. Step 4: Simplify right side
    191,740.88x = 29,428,141,781.06
  5. Step 5: Solve for x
    x = 29,428,141,781.06/191,740.88
  6. Step 6: Final answer
    x = 153,478.70

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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.