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Finding the Fourth Proportional to 74,889.96, 112,334.94 and 51,445.32

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Solution

The fourth proportional to 74,889.96, 112,334.94 and 51,445.32 is: 77,167.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,889.96 : 112,334.94 = 51,445.32 : x
  2. Step 2: Convert to fraction form
    74,889.96/112,334.94 = 51,445.32/x
  3. Step 3: Cross multiply
    74,889.96x = 112,334.94 × 51,445.32
  4. Step 4: Simplify right side
    74,889.96x = 5,779,106,935.48
  5. Step 5: Solve for x
    x = 5,779,106,935.48/74,889.96
  6. Step 6: Final answer
    x = 77,167.98

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Similar ratio
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1.5x scale

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.