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Finding the Fourth Proportional to 84,895.63, 127,294.74 and 65,654.55

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Solution

The fourth proportional to 84,895.63, 127,294.74 and 65,654.55 is: 98,444.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,895.63 : 127,294.74 = 65,654.55 : x
  2. Step 2: Convert to fraction form
    84,895.63/127,294.74 = 65,654.55/x
  3. Step 3: Cross multiply
    84,895.63x = 127,294.74 × 65,654.55
  4. Step 4: Simplify right side
    84,895.63x = 8,357,478,872.07
  5. Step 5: Solve for x
    x = 8,357,478,872.07/84,895.63
  6. Step 6: Final answer
    x = 98,444.16

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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.