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Finding the Fourth Proportional to 84,774.56, 117,005.03 and 56,094.78

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Solution

The fourth proportional to 84,774.56, 117,005.03 and 56,094.78 is: 77,421.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,774.56 : 117,005.03 = 56,094.78 : x
  2. Step 2: Convert to fraction form
    84,774.56/117,005.03 = 56,094.78/x
  3. Step 3: Cross multiply
    84,774.56x = 117,005.03 × 56,094.78
  4. Step 4: Simplify right side
    84,774.56x = 6,563,371,136.27
  5. Step 5: Solve for x
    x = 6,563,371,136.27/84,774.56
  6. Step 6: Final answer
    x = 77,421.48

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1.5x scale

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.