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Finding the Fourth Proportional to 92,389.34, 127,530.06 and 54,663.50

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Solution

The fourth proportional to 92,389.34, 127,530.06 and 54,663.50 is: 75,455.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,389.34 : 127,530.06 = 54,663.50 : x
  2. Step 2: Convert to fraction form
    92,389.34/127,530.06 = 54,663.50/x
  3. Step 3: Cross multiply
    92,389.34x = 127,530.06 × 54,663.50
  4. Step 4: Simplify right side
    92,389.34x = 6,971,239,434.81
  5. Step 5: Solve for x
    x = 6,971,239,434.81/92,389.34
  6. Step 6: Final answer
    x = 75,455.02

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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.